Quartervent

Quartervent (pronounced kwawr-ter-vent)

A small, pivoted, framed (or semi-framed) pane in the front or rear side-windows of a car, provided to optimize ventilation.

1930s: The construct was quarter + vent.  Dating from the late thirteenth century, the noun quarter (in its numerical sense) was from the Middle English quarter, from the Anglo-Norman quarter, from the Old French quartier, from the Latin quartarius (a Roman unit of liquid measure equivalent to about 0.14 litre).  Quartus was from the primitive Indo-European kweturtos (four) (from which the Ancient Greek gained τέταρτος (tétartos), the Sanskrit चतुर्थ (caturtha), the Proto-Balto-Slavic ketwirtas and the Proto-Germanic fedurþô).  It was cognate to quadrus (square), drawn from the sense of “four-sided”.  The Latin suffix –arius was from the earlier -ās-(i)jo- , the construct being -āso- (from the primitive Indo-European -ehso- (which may be compared with the Hittite appurtenance suffix -ašša-) + the relational adjectival suffix -yós (belonging to).  The suffix (the feminine –āria, the neuter -ārium) was a first/second-declension suffix used to form adjectives from nouns or numerals.  The nominative neuter form – ārium (when appended to nouns), formed derivative nouns denoting a “place where stuff was kept”.  The Middle English verb quarteren, was derivative of the noun.  Dating from the mid fourteenth century, vent was from the Middle English verb venten (to furnish (a vessel) with a vent), a shortened form of the Old French esventer (the construct being es- + -venter), a verbal derivative of vent, from the Latin ventus (wind), in later use derivative of the English noun.  The English noun was derived partly from the French vent, partly by a shortening of French évent (from the Old French esvent, a derivative of esventer) and partly from the English verb.  The hyphenated form quarter-vent is also used and may be preferable.  Quarter-vent is a noun; the noun plural is quarter-vents.  In use, the action of using the function provided by a quarter-vent obviously can be described with terms like quarter-venting or quarter-vented but no derived forms are recognized as standard.

1959 Cadillac Eldorado Biarritz.

Like almost all US passenger cars, the post-war Cadillacs all had quarter-vents (“vent windows” or “ventiplanes” to the Americans) and on the most expensive in the range they were controlled by an electric motor, a feature optional on the lesser models.  This was a time when the company's slogan “Standard of the World” really could be taken seriously.  In 1969, with General Motors (GM) phasing in flow-through ventilation, Cadillac deleted the quarter-vents, meaning purchasers no longer had to decide whether to pay the additional cost to have them electrically-activated (a US$71.60 option on the 1968 Calais and De Ville).  GM's early implementation of flow-through ventilation was patchy so the change was probably premature but by 1969 the system was perfected and as good as their air-conditioning, famous since the 1950s for its icy blast.    

The now close to extinct quarter-vents were small, pivoted, framed (or semi-framed) panes of glass installed in the front or rear side windows of a car or truck; their purpose was to provide occupants with a source of ventilation, using the air-flow of the vehicle while in motion.  The system had all the attributes of other admirable technologies (such as the pencil) in that it was cheap to produce, simple to use, reliable and effective in its intended purpose.  Although not a complex concept, GM in 1932 couldn’t resist giving the things an impressively long name, calling them “No Draft Individually Controlled Ventilation” (NDICV being one of history’s less mnemonic initializations).  GM’s marketing types must have prevailed because eventually the snappier “ventiplanes” was adopted, the same process of rationality which overtook Chrysler in 1969 when the public decided “shaker” was a punchier name for their rather sexy scoop which, attached directly to the induction system and, protruding through a carefully shape lacuna in the hood (bonnet), shook with the engine, delighting the males aged 17-39 to whom it was intended to appeal.  “Shaker” supplanted Chrysler’s original “Incredible Quivering Exposed Cold Air Grabber” (IQECAG another dud); sometimes less is more.  Adolf Hitler (1889-1945; Führer (leader) and German head of government 1933-1945 & head of state 1934-1945) suggested a good title for his book might be Viereinhalb Jahre [des Kampfes] gegen Lüge, Dummheit und Feigheit (Four and a Half Years of Struggle against Lies, Stupidity and Cowardice) but his publisher thought that a bit ponderous and preferred the more succinct Mein Kampf: Eine Abrechnung (My Struggle: A Reckoning) and for publication even that was clipped to Mein Kampf.  Unfortunately, the revised title was the best thing about it, the style and contents truly ghastly and it's long and repetitious, the ideas within able easily to be reduced to a few dozen pages (some suggest fewer but the historical examples cited for context do require some space).

The baroque meets mid-century modernism: 1954 Hudson Italia by Carrozzeria Touring.  

Given how well the things worked, there’s long been some regret at their demise, a process which began in the 1960s with the development of “through-flow ventilation”, the earliest implementation of which seems to have appeared in the Hudson Italia (1954-1955), an exclusive, two-door coupé co-developed by Hudson in Detroit and the Milan-based Italian coachbuilder Carrozzeria Touring.  Although some of the styling gimmicks perhaps haven’t aged well, the package was more restrained than some extravagances of the era and fundamentally, the lines were well-balanced and elegant.  Unfortunately the mechanical underpinnings were uninspiring and the trans-Atlantic production process (even though Italian unit-labor costs were lower than in the US, Touring’s methods were labor-intensive) involved two-way shipping (the platforms sent to Milan for bodies and then returned to the US) so the Italia was uncompetitively expensive: at a time when the bigger and more capable Cadillac Coupe de Ville listed at US$3,995, the Italia was offered for US$4,800 and while it certainly had exclusivity, it was a time when there was still a magic attached to the Cadillac name and of the planned run of 50, only 26 Italias were produced (including the prototype).  Of those, 21 are known still to exist and they’re a fixture at concours d’élégance (a sort of car show for the rich, the term an unadapted borrowing from the French (literally “competition of elegance”) and the auction circuit where they’re exchanged between collectors for several hundred-thousand dollars per sale.  Although a commercial failure (and the Hudson name would soon disappear), the Italia does enjoy the footnote of being the first production car equipped with what came to be understood as “flow-through ventilation”, provided with a cowl air intake and extraction grooves at the top of the rear windows, the company claiming the air inside an Italia changed completely every ten minutes.  For the quarter-vent, flow-through ventilation was a death-knell although some lingered on until the effective standardization of air-conditioning proved the final nail in the coffin.

1965 Ford Cortina GT with eyeball vents and quarter-vents.

The car which really legitimized flow-through ventilation was the first generation (1962-1966) of the Ford Cortina, produced over four generations (some claim it was five) by Ford’s UK subsidiary between 1962-1982).  When the revised model displayed at the Earls Court Motor Show in October 1964, something much emphasized was the new “Aeroflow”, Ford’s name for through-flow ventilation, the system implemented with “eyeball” vents on the dashboard and extractor vents on the rear pillars.  Eyeball vents probably are the best way to do through-flow ventilation but the accountants came to work out they were more expensive to install than the alternatives so less satisfactory devices came to be used.  Other manufacturers soon phased-in similar systems, many coining their own marketing trademarks including “Silent-Flow-Ventilation”, “Astro-Ventilation” and the inevitable “Flow-thru ventilation”.  For the Cortina, Ford took a “belt & braces” approach to ventilation, retaining the quarter-vents even after the “eyeballs” were added, apparently because (1) the costs of re-tooling to using a single pane for the window was actually higher than continuing to use the quarter-vents, (2) it wasn’t clear if there would be general public acceptance of their deletion and (3) smoking rates were still high and drivers were known to like being able to flick the ash out via the quarter-vent (and, more regrettably, the butts too).  Before long, the designers found a way economically to replace the quarter-vents with “quarter-panes” or “quarter-lights” (a fixed piece of glass with no opening mechanism) so early Cortinas were built with both although in markets where temperatures tended to be higher (notable South Africa and Australia), the hinged quarter-vents remained standard equipment.  When the Mark III Cortina (TC, 1970-1976) was released, the separate panes in any form were deleted and the side glass was a single pane.

Fluid dynamics in action: GM's Astro-Ventilation.

So logically a “quarter-vent” would describe a device with a hinge so it could be opened to provide ventilation while a “quarter-pane”, “quarter-light” or “quarter-glass” would be something in the same shape but unhinged and thus fixed.  It didn’t work out that way and the terms tended to be used interchangeably (though presumably “quarter-vent” was most applied to those with the functionality.  However, the mere existence of the fixed panes does raise the question of why they exist at all.  In the case or rear doors, they were sometimes a necessity because the shape of the door was dictated by the intrusion of the wheel arch and adding a quarter-pane was the only way to ensure the window could completely be wound down.  With the front doors, the economics were sometimes compelling, especially in cases when the opening vents were optional but there were also instances where the door’s internal mechanisms (the door opening & window-winding hardware) were so bulky the only way to make stuff was to reduce the size of the window.

1976 Volkswagen Passat without quarter-vents, the front & rear quarter-panes fixed.

The proliferation of terms could have come in handy if the industry had decided to standardize and the first generation Volkswagen Passat (1973-1980) was illustration of how they might been used.  The early Passats were then unusual in that the four-door versions had five separate pieces of side glass and, reading from left-to-right, they could have been classified thus: (1) a front quarter-pane, (2) a front side-window, (3) a rear side-window, (4) a rear quarter-pane and (5) a quarter-window.  The Passat was one of those vehicles which used the quarter-panes as an engineering necessity to permit the rear side-window fully to be lowered.  However the industry didn’t standardize and in the pre-television (and certainly pre-internet) age when language tended to evolve with greater regional variation, not even quarter-glass, quarter-vent, quarter-window & quarter-pane were enough and the things were known variously also as a “fly window”, “valence window”, “triangle window” and “auto-transom”, the hyphen used and not.

PA Vauxhall Velox (1957-1962): 1959 (left) and 1960 (right).  The one-piece rear window was introduced as a running-change in late 1959.

Before flow-through ventilation systems and long before air-conditioning became ubiquitous, quarter-vents were the industry standard for providing airflow to car interiors and it was common for them to be fitted on both front and rear-doors and frequently, the rear units were fixed quarter-panes, there to ensure the side windows fully could be lowered.  A special type of fixed quarter-pane were those used with rear windows, originally an economic imperative because initially it was too expensive to fabricate one piece glass to suit the “wrap-around styles becoming popular.  Improved manufacturing techniques let the US industry by the early 1950s overcome the limitations but elsewhere, the multi-piece fittings would continue to be used for more than a decade.

1957 Mercury Turnpike Cruiser (left), details of the apparatuses above the windscreen (centre) and the Breezeaway rear window lowered (right)

The 1957 Mercury Turnpike Cruiser was notable for (1) the truly memorable model name, (2) introducing the “Breezeway" rear window which could be lowered and (3) having a truly bizarre arrangement of “features” above the windscreen.  Unfortunately, the pair of “radio aerials” protruding from the pods at the top of the Mercury’s A-pillars were a mere affectation, a “jet-age” motif decorating what were actually air-intakes.

Brochure for 1957 Mercury Turnpike Cruiser promoting, inter-alia, the Breezeway retractable rear window.

A three-piece construction was however adopted as part of the engineering for the “Breezeway”, a retractable rear window introduced in 1957 on the Mercury Turnpike Cruiser.  It was at the time novel and generated a lot of publicity but the concept would have been familiar to those driving many roadsters and other convertibles which had “zip-out” rear Perspex screens, allowing soft-top to remain erected while the rear was open.  Combined with the car’s quarter-vents, what this did was create the same fluid dynamics as flow-through ventilation.  The way Mercury made the retractable glass work was to section the window in a centre flat section (some 80% of the total width), flanked by a pair of fixed quarter-panes.  After the run in 1957-1959, it was resurrected for use on certain Mercury Montclairs, Montereys and Park Lanes.

1958 (Lincoln) Continental Mark III Convertible (with Breezeway window).  The platform was unitary (ie no traditional chassis) which with modern techniques easily was achievable on the sedans and coupes but the convertible required so much additional strengthening (often achieved by welding-in angle iron) that a Mark III Convertible, fueled and with four occupants, weighed in excess of 6000 lb (2720 kg). 

Ford must have been much taken with the feature because it appeared also on the gargantuan “Mark” versions of the (Lincoln) Continentals 1958, 1959 & 1960, dubbed respectively Mark III, IV, & V, designations Ford shamelessly would begin to recycle in 1969 because the corporation wanted the new Mark III to be associated with the old, classic Continental Mark II (1956-1957) rather than the succeeding bloated trio.  The “Breezeway” Lincolns also featured a reverse-slanted rear window, something which would spread not only to the Mercurys of the 1960s but also the English Ford Anglia (105E, 1959-1968) and Consul Classic (1961-1963) although only the US cars ever had the retractable glass.  The severe roofline was used even on the convertible Continentals, made possible by them sharing the rear window mechanism used on the sedan & couple, modified only to the extent of being retractable into a rear compartment.

1967 Chevrolet Camaro 327 with vent windows (left), 1969 Chevrolet Camaro ZL1 without vent windows (centre) and Lindsay Lohan & Jamie Lee Curtis (b 1958) in Chevrolet Camaro convertible during filming of the remake of Freaky Friday (2003) (provisionally called Freakier Friday), Los Angeles, August 2024.

The Camaro from the film set can be identified as a 1968 or 1969 model because the vent windows were deleted from the range after 1967 when “Astro-Ventilation” (GM’s name for flow-through ventilation) was added.  In North American use, the devices typically are referred to as “vent windows” while a “quarter light” is a small lamp mounted (in pairs) in the lower section of the front bodywork and a “quarter-vent” is some sort of (real or fake) vent installed somewhere on the quarter panels.  As flow-through ventilation became standardized and air-conditioning installation rates rose, Detroit abandoned the quarter-vent which the industry like to do because their absence lowered the cost of production.  On the small, cheap Ford Pinto (1971-1980) the removed feature saved a reported US$1.16 per unit but, being small and cheap, air-conditioning was rarely ordered by Pinto buyers which was probably a good thing because, laboring under the 1970s burdens of emission controls, the weight of  impact-resistant bumper bars and often an automatic transmission a Pinto was lethargic enough with out adding power-sapping air-conditioning.  Responding (after some years of high inflation) to dealer feedback about enquires from Pinto customers indicating a interest in the return of quarter-vents, Fords cost-accountants calculated the unit cost of the restoration would be some US$17.  

Ford Australia’s early advertising copy for the XA Falcon range included publicity shots both with and without the optional quarter-vents (left) although all sedans & station wagons had the non-opening, rear quarter-panes, fitted so the side window completely could be lowered.  One quirk of the campaign was the first shot released (right) of the “hero model” of the range (the Falcon GT) had the driver’s side quarter-vent airbrushed out (how “Photoshop jobs” used to be done), presumably because it was thought to clutter a well-composed picture.  Unfortunately, the artist neglected to defenestrate the one on the passenger’s side.

Released in Australia in March 1972, Ford’s XA Falcon was the first in the lineage to include through-flow ventilation, the previously standard quarter-vent windows moved to the option list (as RPO (Regular Production Option) 86).  Because Australia often is a hot place and many Falcons were bought by rural customers, Ford expected a high take-up rate of RPO 86 (it was a time when air-conditioning was expensive and rarely ordered) so the vent window hardware was stockpiled in anticipation.  However, the option didn’t prove popular but with a warehouse full of the parts, they remained available on the subsequent XB (1973-1976) and XC (1976-1979) although the take-up rate never rose, less the 1% of each range so equipped and when the XD (1979-1983) was introduced, there was no such option and this continued on all subsequent Falcons until Ford ceased production in Australia in 2016, by which time air conditioning was standard equipment.

Great moments in tabloid journalism: Sydney's Sun-Herald, Sunday 25 June, 1972.  The Sun-Herald was then part of the Fairfax group, proving Rupert Murdoch (b 1931) can't be blamed for everything.

The infrequency with which RPO 86 was ordered has been little noted by history but on one car with the option the fixtures did become a element which enabled a owner to claim the coveted “one-of-one” status.  In August 1973, near the end of the XA’s run, with no fanfare, Ford built about 250 Falcons with RPO 83, a bundle which included many of the parts intended for use on the stillborn GTHO Phase IV, cancelled (after four had been built) in 1972 after a newspaper generated one of their moral panics, this time about the “160 mph super cars” it was claimed the local manufacturers were about to unleash and sell to males ages 17-25.  Actually, none of them were quite that fast but the tabloid press have never been too troubled by facts and the fuss spooked the politicians (it's seldom difficult to render a "minister horrified").  Under pressure, Holden cancelled the LJ Torana V8, Ford the GTHO Phase IV and Chrysler reconfigured it's E55 Charger 340 as a luxury coupé, available only with an automatic transmission and no high-performance modifications.

A Calypso Green 1972 Ford XA Falcon GT which is the only one produced with both RPO 83 (a (variably fitted) bundle of parts left-over from the aborted GTHO Phase IV project) and RPO 86 (front quarter-vent windows).  In the collector market they're referred to usually as "RPO83 cars". 

So in 1973 Ford's warehouse still contained all the parts which were to be fitted to the GTHO Phase IV so they’d be homologated for competition and although the rules for racing had been changed to ensure there was no longer any need to produce small batches of “160 mph (257 km/h) super cars”, Ford still wanted to be able to use the heavy-duty bits and pieces in competition so quietly conjured up RPO 83 and fitted the bundle on the assembly line, most of the cars not earmarked for allocation to racing teams sold as “standard” Falcon GTs.  Actually, it’s more correct to say “bundles” because while in aggregate the number of the parts installed was sufficient to fulfil the demands of homologation, not all the RPO 83 GTs received all parts so what a buyer got really was “luck of the draw”; with nobody being charged extra for RPO 83, Ford didn’t pay too much attention to the details of the installations and many who purchased one had no idea the parts had been included, the manual choke's knob the only visually obvious clue.  Ford made no attempt to publicize the existence of RPO 83, lest the tabloids run another headline.  It’s certain 250 RPO 83 cars were built (130 four-door sedans & 120 two-door Hardtops) but some sources say the breakdown was 131 / 121 while others claim an addition nine sedans were completed.  Being a genuine RPO 83 car, the Calypso Green GT attracts a premium and while being only RPO 83 with quarter-vent windows is not of any great significance, it does permit the prized “one-of-one” claim and not even any of the four GTHO Phase IVs built (three of which survive) had them.  In the collector market, the “one-of-one” status can be worth a lot of money (such as a one-off convertible in a run of coupés) but a Falcon’s quarter-vents are only a curiosity.

The Bathurst 1000 winning RPO83 Falcon GTs, 1973 (left) & 1974 (right).

All else being equal, what makes one RPO83 more desirable than another is if it was factory-fitted with all the option's notional inventory and most coveted are the ones with four-wheel disk brakes.  Because the project was focused on the annual endurance event at Bathurst's high-speed Mount Panorama circuit, the disks were as significant as an additional 50 horsepower and a few weeks before the RPO 83 run they'd already been fitted to the first batch of Landaus, which were Falcon Hardtops blinged up with hidden headlights, lashings of leather, faux woodgrain and a padded vinyl roof, all markers of distinction in the 1970s and, unusually, there was also a 24 hour analogue clock.  Essentially a short wheelbase, two-door LTD (which structurally was a Falcon with the wheelbase stretched 10 inches (250 mm) to 121 (3075 mm)), the Landau was not intended for racetracks but because it shared a body shell and much of the running gear with the Falcon GT Hardtops, Ford claimed Landau production counted towards homologation of the rear disks.  Fearing that might be at least a moot point, a batch were installed also on some of the RPO83 cars and duly the configuration appeared at Bathurst for the 1973 event, their presence of even greater significance because that was the year the country switched from using imperial measures to metric, prompting the race organizers to lengthen the race from 500 miles (804 km) to 625 (1000), the Bathurst 500 thus becoming the Bathurst 1000.  RPO83 Falcon GTs won the 1973 & 1974 Bathurst 1000s.  

Slant

Slant (pronounced slant or slahnt)

(1) A surface, structure, line etc at a slope or in an oblique direction.

(2) In (US) football, an offensive play in which the ball-carrier runs toward the line of scrimmage at an angle (known also as the “slant-in”, a pass pattern in which a receiver cuts diagonally across the middle of the field).

(3) In prosody, as “slant rhyme”, a synonym for the “half rhyme”, “near rhyme” & “quasi-rhyme” (a form of imperfect rhyme in which the final (coda) consonants of stressed syllables (and, in modern English poetry, any following syllables to the end of the words) are identical in sound, but the vowels of the stressed syllables are not.

(4) In typography, a synonym of slash ( / ⟩, particularly in its use to set off pronunciations from other text (not used in IT where the distinctions are between the forward-slash (/) and the back-slash (\) which nerds call respectively the slash and the slosh.

(5) In biology, a sloping surface in a culture medium.

(6) In hydro-carbon extraction, as “slant drilling”, a technique in which the drilling is undertaken at an oblique angle rather than the traditional vertical orientation.

(7) In extractive mining, as type of run in which a heading is driven diagonally between the dip and strike of a coal seam.

(8) In informal use, a glance or look.

(9) To veer or angle away from a given level or line, especially from a horizontal; slope (in to incline, to lean).

(10) Figuratively, to have or be influenced by a subjective point of view, bias, personal feeling or inclination etc (often as “slant towards”, “slanted view” etc); a mental leaning, bias, or distortion (“feminist slant”, “MAGA slant”, “liberal slant”, “business slant” et al).

(11) To cause to slope.

(12) Figuratively, to distort information by rendering it unfaithfully or incompletely, especially in order to reflect a particular viewpoint (more generously sometimes described as “spin” or “massaged”).  The concept is known also as “angle journalism” (the particular mood or vein in which something is written, edited, or published).  In Scots English, the meaning “to lie or exaggerate” captures the flavor.  When used to describe the composing, editing, or publishing of something to attract the interest of a specific sub-group (a “slanted” story), “slanted towards” is necessarily pejorative if used only to suggest something optimized to appeal to a certain market segment or demographic (ie it’s more like “aimed at” or “intended for”).

(13) In slang, as “slant eye” (a racial slur now listed as disparaging & offensive), a reference to people from the Far East (applied historically mostly to the Chinese & Japanese), based on the shape of the eyes.  The variants included “slit eye”, “slitty-eyed” & “slopehead”, all equally offensive and now proscribed.

(14) In painting (art) a pan with a sloped bottom used for holding paintbrushes; a depression on a palette with a sloping bottom for holding and mixing watercolors; a palette or similar container with slants or sloping depressions.

(15) In US regional slang, a sarcastic remark; shade, an indirect mocking insult (archaic).

(16) In US slang, an opportunity, particularly to go somewhere (now rare).

(17) In historic Australian colonial slang, a crime committed for the purpose of being apprehended and transported to a major settlement.

Circa 1480s: From the Middle English –slonte or -slonte, both aphetic (in phonetics, linguistics & prosody, “of, relating to, or formed by aphesis” (the loss of the initial unstressed vowel of a word)) variants of aslant, thought to be of Scandinavian origin.  The other influence was probably the earlier dialectical slent, from the Old Norse or another North Germanic source and cognate with the Old Norse slent, the Swedish slinta (to slip) and the Norwegian slenta (to fall on the side), from the Proto-Germanic slintaną (which, in turn, was probably in some way linked with aslant.  Slant & slanting are nouns, verbs & adjectives, slanted is a verb & adjective, slantish is an adjective, slantwise is an adjective & adverb and slantingly & slantly are adverbs; the noun plural is slants.  The pleasing adjective slantendicular is listed by some as non-standard and presumably is proscribed in geometry and mathematics because it's an oxymoron; it’s a portmanteau word, the construct being slant + (perp)endicular.  It may be useful however in commerce or engineering where it might be used to describe something like a tool with a shaft which at some point assumes an oblique or skewed angle.   So it’s there to be used and slantindicular should be applied to stuff which is neither wholly nor fully slanted and in architecture, such structures are numerous.  In commerce, it could be used as a noun.

The noun slant by the 1650s was used to mean “an oblique direction or plane” and began in geography & civil engineering (of landforms, notably ski-slopes), developed from the verb or its adjective.  The now familiar (in the Fox News sense) meaning “way of regarding something, a mental bias” dates from 1905 while the derogatory slang sense of “a person of Asian appearance” came into use some time in the 1940s, a direct descendent from the earlier "slant-eyes", documented since 1929.  The verb slant is documented since the 1520s in the sense of “obliquely to strike (against something)”, an alteration the late thirteenth century slenten (slip sideways), the origin of which is murky but etymologists have concluded it came (via a Scandinavian source (noting the Swedish slinta (to slip)) and the Norwegian slenta (to fall on one side), from the Proto-Germanic slintanan.  The intransitive sense of “to slope, to lie obliquely” was in use by the 1690s, while the transitive sense of “to give a sloping direction to” had emerged by the early nineteenth century.  As early as the late fifteenth century forms were in use as an adverb, the adjectival use attested from the 1610s.  The technical use in literary theory as “poetic slant rhyme” was first used in the mid 1920s (assonance or consonance) although such lines had appeared for centuries, used sometimes deliberately as a device, sometimes not.  In the following stanza by English poet Peter Redgrove (The Archaeologist, published in Dr Faust's Sea-Spiral Spirit (1972)), the second and third lines contain a form of slant rhyme while the first and fourth have pure rhymes:

So I take one of those thin plates
And fit it to a knuckled other,
Carefully, for it trembles on the edge of powder,
Restore the jaw and find the fangs their mates.

Slanted right: You are watching Fox.

While it’s unlikely volumes of the poetry of Emily Dickinson (1830–1886) sit upon the bookshelves of those members of the Fox News audience who have bookshelves, they likely would concur with her words: “Tell the truth but tell it slant.”  “Slanted reporting” has become something which in recent years has attracted much attention (and much hand-wringing by the usual suspects) as an increasingly polarization of positions has been alleged to be a feature of political discourse in the West.  There is little doubt the effect (as reported) is obvious but there’s some debate about both the mechanics and the implications of the phenomenon.  As long ago as 2018, a study found that although the tenor and volume of things on X (formerly known as Twitter) was found to be increasingly toxic and surging, the number of active users engaged in these political polemics was found to be tiny and their effect was distorted by (1) the huge number of tweets they tended to post, (2) the propensity of their fellow-travelers to re-tweet and (3) the use of bots which were more prolific still.  If anything, recent voting patterns suggest it would seem the views of the general population appear to be trending away from the extremes towards the more centralist positions offered by independents or small-parties, something most obvious in Australia where compulsory voting exists.  Outfits like Fox News offer a slanted take on just about everything (and promote country & western music which truly is inexcusable) but this is something which has been identifiable in the news media as long as it’s existed and their blatant bias is hardly subversive or threatening, simply because it is so blatant.  What was most interesting in what emerged from the recent defamation suit filed by Dominion Voting Systems against Fox News suggested the network’s stance on things was motivated more by the financial imperative than ideological purity.  Intriguingly, what some analysts concluded was that if the universe shifted and the Fox News audience transformed into a bunch of seed-eating hippies, there would follow Fox’s editorial position, the slant being towards the advertising revenue rather than a particular world view.  Of course, there are some slants which are unalterable and dictated by ideological purity but with commercial media, it’s likely sometimes cause is confused with effect.

The New Statesman, 14-20 June 2024: A publication with a leftist slant depicting the European right, slanted to the right.

Founded in 1913 by Sidney (1859–1947) & Beatrice Webb (1858–1943) with patronage from George Bernard Shaw (GBS; 1856-1950) and other worthies from the socialist Fabian Society.  Its circulation was at its highest during the high-water mark of British socialism under Harold Wilson (1916–1995; UK prime minister 1964-1970 & 1974-1976) but, now with print and digital editions in the common manner, it has survived and while unashamedly left-wing (the editorial boards preferring terms like “progressive” & “liberal”), it also has an emphasis on culture and literature, a mix similar to The Spectator (right) and The Economist (centre-right).  Unlike the Spectator which picks up readers from across the spectrum because the often punchy writing attracts (as well as those who read it on the basis of "know thy enemy"), the published surveys suggest The New Statesman's readership tends to be from the left.

The Leaning Tower of Pisa (left) and Lindsay Lohan in The Parent Trap (1998) in front of London’s perpendicular Big Ben (1859) (right).  The architect’s original name for the latter was a typically succinct “Clock Tower”, chosen because it housed the “Great Bell of the Great Clock of Westminster” but it was in 2012 renamed “Elizabeth Tower”, marking the Diamond Jubilee of Elizabeth II (1926-2022; Queen of the UK and other places, 1952-2022), something little noted by Londoners or those beyond who continue to prefer the nickname “Big Ben” although strictly speaking that’s a reference only to the “Great Bell” a 13.5 ton (13.7 tonne) casting in bell metal (a bronze which is an alloy of about 77% copper & 23% tin).  The origin of the nickname is contested but there are no romantic tales, all the possible inspirations being worthy white men as was the Victorian way.

Although in Italy alone there are seven leaning towers (three of which stand (ie lean) in Venice), it’s the torre di Pisa (Tower of Pisa) which is by far the best-known and a frequent Instagram prop.  Built between 1173-1372, the structure in the Piazza del Duomo (Pisa’s Cathedral Square) is the campanile (the freestanding bell tower) of the adjacent Pisa Cathedral and the famous lean of some 4^o (actually somewhat less than its greatest extent after more than a century of compensating engineering works) was apparent even during construction, the cause the softness of the sub-surface.  That geological feature has however contributed to the tower’s survival, the “rubber-like” sponginess below acting to absorb movement and despite a number of severe earthquakes in the region over the centuries, the tower remains.  It is of course known as the leaning tower than a sloping, oblique or slanted tower, probably because of the conventions of use which evolved in English.

The words “sloping”, “oblique”, “slanted”, & “leaning” all describe something not vertical or horizontal there tend to be nuances which dictate the choice of which to use.  Sloping generally is used of something which inclines or declines at a gentle or continuous angle, the implication being of a gradual or smooth transition from elevation to another, such as the way a hillside rises gradually rises to its summit.  Oblique is mostly a matter of specific angles and is thus common is mathematics, geometry and engineering.  Again, it’s a reference to something neither parallel nor perpendicular to a baseline but it tends to be restricted to something which can be defined with an exact measurement; in geometric or technical use, an oblique line or angle is one neither 90^o nor perfectly horizontal.  Slanted describes something positioned at a diagonal, often used to imply a more noticeable or sharp angle but also is widely used figuratively, metaphorically and in idiomatic phrases.  Leaning refers to something tilted or positioned at an angle due to external pressure, the object in an unstable position and in need of support.  The implication carried is that something which “slants” is designed thus to do while something which “leans” does so because of some design flaw or unexpected external force being applied so it’s the leaning and not the sloping tower of Pisa, even though the structure has assumed quite a slope.

Slanting Engines

On a slant: Diagram of the mounting of the M194 straight-six engine in the Le Mans winning Mercedes-Benz 300 SL (W194) canted at a 40^o slant (left); the Mercedes-Benz M196 straight-eight engine schematic (centre) and installed in a 1954 W196R "Streamliner" at a 53^o slant (right).  The two large donut-like objects at the front are the inboard, finned brake drums; at the time, the engineers maintained disk brakes were "not yet ready for use". 

There are “slant” engines and they exist in three configurations.  The first is simply a conventional in-line engine (straight-six, straight-eight etc) which, when installed in a vehicle, is fitted with the block canted to the left or right, the objective being a lower hood line which means a better aerodynamic outcome.  A classic example was the Mercedes-Benz W196R Formula One racing car (1954-1955) in which the straight-eight was canted to the right at a 53^o angle, the technique carried over when the same structure was used to produce the W196S (1955) used to contest the World Sports Car Championship.  Rather opportunistically, the W196S was dubbed the 300 SLR (one of which in 2022 became the world's most expensive used car, selling at a private auction for US$142 million) as a form of cross promotion with the 300 SL (W198, 1954-1956) Gullwing then in production, even though the two types shared little more than nuts, bolts and a resemblance.  The 300 SL did however also have its straight-six engine sitting at a slant, this time canted at a 50^o angle and although the factory never published an estimate of the reduction in drag, it’s long been presumed to be “at least several percent”.  Another advantage of the configuration was it made possible the use of “long-tube” runners for the induction system, taking advantage of the properties of fluid dynamics to permit them to be tuned either for mid-range torque or top-end power.  The concept used math which had been worked out in the nineteenth century and had often been used in competition but it wasn’t until 1959 when Chrysler in the US released their picturesque induction castings that the system, imaginatively named the “Sonoramic”, reached a wider audience.

Chrysler Slant Six (170 cid, 1963) schematic.

The “true” slant engines were those with a slanted block atop an otherwise conventional arrangement of components, the best known of which was Chrysler’s long-serving “Slant Six”, produced in displacements of 170 cubic inch (2.8 litre, 1959-1969), 198 cubic inch (3.2 litre, 1970-1974) and 225 cubic inch (3.7 litre, 1960-2000).  The block of the Slant Six was canted to the right at a 30^o and like Mercedes-Benz, Chrysler took advantage of the space created to the left to produce some wide induction runners, the most extravagant those used by the special Hyper Pack option package which used a four barrel carburetor, enabling the engine to produce power which made it competitive with many V8 powered machines.  Although the name “Slant Six” became famous, it was only in the mid-sixties it caught on, Plymouth originally calling the thing a 30-D (a reference to the a 30^o slant), hardly very catchy and something to which only engineers would relate and Slant Six was soon preferred although the aficionados really like “tower of power” and the engine even today still has a devoted following.

Chrysler Slant Six with Hyper Pak in 1962 Plymouth Valiant V-200.

Chrysler didn’t restrict the Sonoramics to the big-block V8s, using it also on the short-lived (1960-1962) Hyper Pak performance option for the both 170 cubic inch (2.8 litre, 1959-1969) and 225 cubic inch (3.7 litre, 1987-2000) versions of the Slant Six, the engineers taking advantage of the space afforded by the canted block to permit the curvaceous intake runners nearly to fill the engine bay.  The Hyper Pak wasn't seen in showrooms but was available as an over-the-counter kit (literally a cardboard box containing all necessary parts) from Dodge & Plymouth spare parts departments and its life was limited because it became a victim of its own success.  Although less suitable for street use because it turned the mild-mannered straight-six into something at its best at full throttle, in the race events for which it was eligible it proved unbeatable, dominating the competition for two years, compelling the sanctioning body cancel the series.

Manifold porn: The Slant Six's angle meant there was much space available to the left and a range of intake manifolds followed, some of which remain available to this day.  Using variations of the sonoramic tuning, manifolds were produced for single, two & four barrel carburetors and between 1965-1968, Chrysler's Argentine operation produced the Slant Six in a version with twin single barrel carburetors.  The use of the properties of fluid dynamics to gain power or torque as desired quickly was adopted by the industry as an engineering orthodoxy.

Some myths seem to have become attached to the Hyper-Pak.  What seems to be true is the original kit, sold in 1960 for the 170 engines used in competition, was a genuine homologation exercise and as well as the intake manifold & Carter AFB four barrel carburetor, it included all the internal parts such as the high-compression pistons, the high-lift camshaft and the valve train components needed to support the consequently higher engine speeds.  Because the competition rules allowed modifications to the exhaust system, on the track the cars ran tubular steel headers which fed an open exhaust, terminating in the racers' preferred “dump pipe”.  After the requisite number of “complete” kits were sold, thus fulfilling the homologation demands, the kits were reconfigured and included only the “bolt-on” parts such as the induction system and a camshaft which, while more aggressive than the standard unit, wasn’t as radical as the one used on the track but could be used in conjunction with the standard valve train and Chrysler’s TorqueFlite automatic, thus expanding the Hyper-Pak’s appeal.

At the same time, the availability was extended to the larger 225 which between 1961-1963 was also available with an aluminum block, thus becoming one of the small number of engines configured with the combination of an aluminum block with a cast-iron head.  US manufacturers were at the time aware the trend was for cars to continue getting bigger so they were interested in ways to reduce weight.  However, despite saving some 70 lbs (32 KG), Chrysler’s aluminum block was, like General Motors’ (GM) 215 cubic inch (3.5 litre) V8, short-lived (though the V8 after being sold to Rover enjoyed a long, lucrative and prolific second life, not finally laid to rest until 2006) for not only were teething troubles encountered with the still novel method of construction, the accountants made clear using cast iron was always going to be cheaper so the industry just accepted weight gain and whenever required, increased displacement to compensate, an approach which persisted until the first oil shock of the early 1970s.

1970 Dodge Challenger (1970-1974) with 225 Slant Six.

Until 1973, both the Challenger & the corporation's companion E-Body pony car (the Plymouth Barracuda (1969-1974)) was available with the Slant Six (198 & 225) although the fitment rate was under 10%, unlike the early pony cars (Ford Mustang, Chevrolet Camaro and the early Barracudas) where the six-cylinder versions would at times be close to 40% of production.  Many of the surviving Slant Six Challengers & Barracudas have been "re-purposed" as clones of the more desirable versions with potent small or big-block V8s.  Because of the rarity, exceptional examples of slant-six E-body cars do trade in a niche in the collector market. 

Although it was the longer lived 225 version which gained the Slant Six its stellar reputation for durability and the ease with which additional power could be extracted, there's always been a following for the short-stroke 170 because of its European-like willingness to rev, the characteristics of the over-square engine (unique among the slant-six's three displacements (170-198-225)) unusually lively for a US straight-six.  Despite some aspects of the specification being modest (there were only four main bearings although they were the beefy units used in the 426 cubic inch Street Hemi V8), for much of its life it used a tough forged steel crankshaft and high-speed tolerant solid valve lifters; it proved a famously robust engine and one remarkably tolerant of neglect.  Despite that, after the Hyper Pak affair, Chrysler in the US showed little interest in any performance potential, knowing the US preference for V8s, something which doomed also Pontiac's short-lived single overhead camshaft (SOHC) straight-six (1966-1969).  A version of the 225 with a two-barrel carburetor (rated at 160 horsepower, an increase of 15 over the standard unit) was offered in some non-North American markets where V8 sales were not dominant and it proved very popular in South Africa, Australia, New Zealand and Central & South America but only when tighter US emission regulations forced its adoption did a 225 with a two barrel carburetor appear in the home market though there it was installed to restore the power losses suffered after the emission control plumbing was added rather than seek gains.

Pontiac Trophy 4 cutaway.

Making a straight-eight or V8 by combining two in-line fours has been done a few times and many have been successful (although Triumph managed to create a truly horrid one for the otherwise lovely Stag).  Less common is making a four from an eight but that’s what Pontiac did when they conjured their 194.5 cubic inch (3.2 litre) four by using one bank of their 389 cubic inch (6.4 litre) Trophy V8 and it was (just about) literally cut in half, meaning the cylinders were canted to the right by 45^o (the V8 obviously in a conventional 90^o configuration).  To emphasize the family connection with the highly regarded Pontiac Trophy V8, the smaller offspring was called the Trophy 4 (although it was at time also dubbed the Indy 4 or Indianapolis 4 which even at the time sounded ambitious).  It did work and the economic advantages for the manufacturer (use of common components and the same assembly line) were compelling but the limitations inherent in a four-cylinder of such a large displacement were apparent in the rough-running and wear on critical parts and it was available only between 1961-1963 and used in a single model, the compact (in US terms) Tempest.

Pontiac 389 cubic inch V8 and "Tri-Power" (three Rochester two-barrel carburetors) induction in 1966 GTO convertible; one of these is more sought after than two Trophy 4s and worth more than twice as much.

The Pontiac V8 which provided the bones for the Trophy 4 was unusual compared with the US industry's post-war practice in that although its displacement ranged between 265-455 cubic inches (4.3-7.5 litres), only one block was used whereas others would produce several, the most common distinction being the "big block" and "small block", terms which were not always indicative of relative internal capacity but were literal in terms of external dimensions.  Ford muddied the waters a bit when one "big block" was continued in production after another (even bigger) "big block" was released and this had led some to prefer the opportunistically coined "mid block" but that's always been too nerdy for most who continue to prefer the well-understood small-big distinction.  All Oldsmobile's post-war V8s also shared the one basic block but the division followed the usual practice of using a "tall deck" version (ie one with metal added to the casting to permit a longer stroke) for the larger displacement iterations whereas Pontiac chose to use a unique "short deck" casting for some in the last days before General Motors (GM) extended the intra-divisional sharing of engines, something which doomed the Pontiac V8.  The fact that the external dimensions of the Pontiac V8s were almost all identical, regardless of displacement intrigued some who saw a simple, cheap path to power, replacing a 326 cubic inch (5.3 litre) V8 with a 455 cubic inch version a remarkably simple process.  However, as some soon found out, just because it fitted under the hood didn't mean other components would tolerate the increase in power and torque, something which applied especially to some of Pontiac's novel (and short-lived) engineering in the early 1960s such as the flexible driveshaft (the so-called "rope-drive") or the rear-mounted transaxle;  quickly, things would break.

Diagram showing balance shaft locations.

Bigger even than the Pontiac Trophy 4, large displacement four cylinder engines were once common although some were exceptional.  Fiat in 1910 built two of their S76s to contest the world LSR (land speed record) and they were an hefty 28.4 litres (1730 cubic inch), the “Beast of Turin” using its then impressive 290 horsepower (216 kW) to attain a one-way speed of 132.27 mph (213 km/h) but, because it was not possible for the team to make the “return run” (ie in the opposite direction) within the stipulated one hour, the LSR remained with the Blitzen Benz which in 1909 had set a mark of 125.94 mph (202.65 km/h).  On land, never again would anyone build a four with the capacity to match the Beasts of Turin but units with displacements approaching 5.0 litres (305 cubic inch) were not uncommon during the inter-war years.  However, the technology of the internal combustion engine (ICE) greatly advanced during World War II (1939-1945) and one consequence of that was engine speeds rose and less displacement was required for a specific output, both factors which conspired to make the big fours unfashionable.  They did however make a comeback in the 1970s when the clever trick of “balance shafts” enabled the inherently chronic second order harmonic vibrations to be “dampened out” and Porsche between 1991-1995 produced a 3.0 litre (183 cubic inch) range which used the technique.  The balance shaft was invented early in the twentieth century by English engineer Frederick Lanchester (1868–1946) but it was Mitsubishi which in the 1970s patented their “Silent Shaft” system and although Porsche developed their own version, they worked out the Japanese design was superior so used that instead, paying Mitsubishi a small royalty (under US$10) for each one installed.  A balance shaft uses two counterweights (looking something like small hockey pucks with the shaft running through them), set some 1½ inches (40 mm) apart and turns at twice the engine-speed.  With one shaft mounted high on one side of the engine and the other low on the opposite side, the pair counter-rotates, balancing the large reciprocating mass.  In that, the balance shafts can be thought of as a variation of a crankshaft's harmonic balancer.

Headlights on a slant

The one-off, 1938 Jaguar SS100 fixed head coupé (FHC) “Grey Lady” which demonstrates the traditional placement when four lights were used.

Headlights at a slant (mounted diagonally and known also as "canted") have also been a thing.  The inclination designers for decades felt to use a diagonal arrangement for headlights began innocently enough in the pre-war years when it emulated the usual practice of placing a pair of driving lamps or for lights inboard of the main headlamps and lower down, mounted typically on the bumper bar or its supporting brackets.  Most headlamps until the late 1930s were in separate housings, as were the auxiliary devices and even cars which integrated them into the coachwork adopted the same geometry.  This was due in part to the evolutionary nature of automobile styling which has often tried to avoid the “shock of the new” and in part to regulations, especially those which applied in the US.

Jaguar S-Type (1963-1968, left), Vanden Plas Princess R (1964-1968, centre) and Volvo 164 (1968-1975, right).

Although most would regard the technique which essentially integrated the driving lamps/fog lamps into the coachwork as just a variation on the diagonal theme, professional designers insist not; they say this is just wrapping enveloping bodywork around an existing device.  Also, the professionals prefer the term “canted headlamps” because “diagonal” has a more precise definition in mathematics.

Rover 3.5 Coupé (P5B 1967-1973, left) and Packard Coupe (1958) (right)

While the US manufacturers usually re-tooled in 1957-1958 after regulations had been changed to allow quad head-lamps, the British were often fiscally challenged and needed to continue to use existing sheet metal.  A design like the Vanden Plas Princess R (and the companion Wolseley 6/99 & 6/110 (1959-1968)) has sufficient space to allow the diagonal placement but the Rover P5 (1958-1967) with its wider grill precluded the approach so the expedient solution was to go vertical.  Although obviously just “bolted on”, such was the appeal of the P5B it just added to the charm.  It could have been much worse because less charming was the 1958 Packard Coupe, produced by Studebaker-Packard, the company an ultimately doomed marriage of corporate convenience which seemed at the time a good idea but proved anything but. Studebaker-Packard lacked the funds to re-tool to take advantage of the rules allowing four head-lamps but without the feature their cars would have looked even more hopelessly outdated than they anyway did so cheap fibreglass “pods” were produced which looked as “tacked on” as they were.  They were the last Packards made and Studebaker’s demise followed within a decade.

1963 Zunder

The Zunder ("spark" in German) was produced in Argentina between 1960-1963 and used the power-train from the Porsche 356.  The body was fashioned in fibreglass and was one of the many interesting products of the post war industry in Brazil and Argentina, the history of which is much neglected.  By the standards of time, it was well-built but as a niche product, was never able to achieve the critical mass necessary to ensure the company’s survival and production ceased in 1963 after some 200 had been built.

Buick Electra 225 (First generation 1959–1960, left) and (Lincoln) Continental Mark III (1958-1960, right).  The Buick adopted horizontal headlamps in 1960.

In the late 1950s, most US manufacturers did have cash to spend and the industry spirit at the time was never to do in moderation what could be done in excess although by comparison with the Lincoln, the Buick verged on the restrained.  Tellingly, the Buick sold well while the Continental was such a disaster Ford considered sending Lincoln to join Edsel on the corporate scrapheap and the nameplate was saved only because it was possible at low cost to re-purpose a prototype Ford Thunderbird as the new Continental.  Rarely has any replacement been such a transformation and the 1961 Continental would influence the design of full-sized American cars for twenty years.  It used horizontally mounted head-lamps.

1961 Chrysler 300 G.

Chrysler’s “Letter Series 300” (1955-1965) coupes and convertibles were the brightest glint in the golden age in which Detroit’s power race was played out in the big cars, an era which would be ended by the introduction of the intermediates and pony cars in the 1960s.  The 300G (1961) was visually little changed from the previous year’s 300F but the simple change to diagonal headlamps was transformative.  There were those who didn’t like the look but generally it was well received and as a first impression, the feeling might have been Chrysler had mastered the motif in a way the Continental Mark III proved Ford just didn’t get it.

1961 DeSoto Adventurer (left), 1962 Dodge Dart (centre) and 1963 Dodge Polara (right).

However, Chrysler’s designers in the early 1960s may have decided they liked diagonal headlamps which was good but seemingly they liked them so much they though the buyers should be offered as many permutations of the idea as could be made to work on a production line.  What’s remarkable is not that the public didn’t take to the approach but that it took the corporation so long to admit the mistake and try something more conventional.  Just to hedge their bets, while Dodge, Plymouth and DeSoto all had headlamps mounted at an obvious degree of cant, on the Chryslers the effect was so subtle one really needed to hold a spirit level to the front end to confirm there was an slant, albeit one imperceptible to the naked eye.  The one division which never were the diagonal way was the Imperial but it’s headlamp treatment was more bizarre still.

1961 DeSoto styling proposal (September 1958) for the 1961 range.

For DeSoto, things could have looked worse even than they did, some of the implementations of the diagonal motif which went as far as clay models or actual metal prototypes so bizarre one wonders what external influences were being studied (or inhaled).  As it turned out, 1961 would be the end of the line for DeSoto, a nameplate which had been successful as recently as the mid 1950s.  Its demise was little to do with diagonal head-lamps (though they didn’t help) but a product of Chrysler’s other divisions expanding their ranges up and down, encroaching on a market segment DeSoto once found so lucrative.  The phenomenon was a harbinger of the eventual fate of marques like Mercury, Pontiac, Oldsmobile and Plymouth.

Retractable headlights: 1972 Ferrari 356 GTC/4 (top left), 1968 Lamborghini Isoero (top right), 1967 Maserati Ghibli Spyder (bottom left) and 1970 Plymouth Superbird (bottom right).

Although sometimes the diagonal placement of headlights was a deliberate choice by the stylist, it could be something dictated by the body's shape and this was the case when quad units were used in conjunction with retractable housings.  On most cars the diagonal motif appeared with the outboard lights mounted noticeably higher than those inboard but, because of the slope, when retractable lights were used the inner lights could sit higher, the visual effect sometimes exaggerated because the angle the housing (following the horizontal nose-line) assume when erected made the inboard lights seem higher still.  It was a product of shape and not something inherent to the “pop-up” retractable technique: The 1969 Dodge Daytona and 1970 Plymouth Superbird (both homologation exercises for use on the NASCAR (National Association for Stock Car Auto Racing) ovals & tracks) both had their four headlights aligned in the horizontal.

1964 Bentley S3 “Chinese-eye” two-door saloon by Mulliner, Park Ward (MPW).  MPW was in 1961 created as the in-house coach-building division of Rolls-Royce by merging Park Ward (a subsidiary since 1939) and H. J. Mulliner (a subsidiary since 1959).  In 1991 the operation was shut down but the Mulliner name endures as Bentley’s “personal commissioning division” which offers services ranging from high-priced bling to bespoke coach-built bodies.

Bentley’s Continental “sports saloon” was in 1952 introduced on the R-Type chassis, the line continued (with some sacrifice in individuality) with the S-Type generation of six-cylinder cars in 1955.  When the S2 was released in 1959, the external appearance was little changed although under the bonnet (hood) there was the new 6¼ litre V8 which faithfully would serve for some six decades until 2020 when the last was fitted to a Bentley Mulsanne although by then, there were few parts able to be interchanged with those in the original run.  With the debut of the V8, it was no longer possible to purchase a Bentley with a manual transmission and, unlike some of the S3 range, all the Continentals had coach-built bodies from H J Mulliner, James Young or Park Ward.  The Mulliner (and later MPW) cars featured slanting nacelles for the quad headlights and quickly these gained the sobriquet “Chinese eye” which, surprisingly, seems to have survived the linguistic treadmill and the term still is used by the trade servicing the collector community.

Clockwise from top left: Fiat 8V (1952-1954), Gordon-Keeble GK-1 (1961-1967), Jensen C-V8 (1962-1966) and Triumph Vitesse convertible (1962-1971).

Perhaps surprisingly, the French majors were never much enamored, presumably because Citroën and Renault didn’t like to be thought imitative and Peugeot was too conservative.  Some of the Europeans did dabble with the idea, embracing it as an expression of modernity although the then radical treatment of the head-lamps sometimes struck a discordant note when the look was grafted onto something where the rest of the platform was so obviously from one or two generations past.  Fiat’s exquisite 8Vs didn’t all get the diagonal look but those which did remain the most memorable of the few of the breed built.  An unqualified aesthetic success was the Gordon-Keeble built to aviation standards and powered by a Chevrolet V8 in Corvette tune.  It deserved to succeed but floundered as much of the British industry did in the era because of a lack of capitalization and an accounting operation which didn’t match the quality of the engineering.  More commercially successful was the Jensen C-V8 but while the distinctive front end now makes it much prized by collectors, at the time it was less admired and its very presence served only to emphasize how antiquated the rest of the styling had become.  For its replacement, Jensen tuned to an Italian styling house and the Interceptor, introduced in 1966 and remembered for the vast expanse of rear glass, is now thought a classic of the era.  The one which sold best was the Triumph Vitesse, one of a number of variations built on the robust and versatile separate chassis of the Herald (1959-1971) including the Spitfire and GT6.  Although not exactly the BMW M3 of its day, the six-cylinder engines did provide effortless performance and the Vitesse’s front end actually lived on in India (though without the torquey straight-sixes) to enjoy an "Indian summer" but curiously, the inner headlights weren’t fitted.

Gilding the lily: The Lancia Fulvia coupé (1965-1976) before & after.

The lovely, delicate lines of the Lancia Fulvia were perfect and really couldn’t be improved.  The unfortunate facelift with the canted lights was no improvement.