Penthouse (pronounced pent-hous)
(1) An
apartment or dwelling on the roof of a building, usually set back from the
outer walls.
(2) Any
specially designed apartment on an upper floor, especially the top floor, of a
building.
(3) A
structure on a roof for housing elevator machinery, a water tank etc.
(4) Any
roof-like shelter or overhanging part.
(5) In real tennis, a corridor having a slanted roof and projecting from three walls
of the court.
(6) As
mechanical penthouse, a floor, usually directly under a flat-roof, used to
house mechanical plant & equipment.
(7) A
special-interest magazine, aimed at a mostly male audience and published in
several editions by a variety of owners between 1965-2023.
1520–1530: Despite the appearance penthouse is not a portmanteau (pent + house) word. Penthouse is an alteration (by folk etymology) of the Middle English pentis, pentiz & pendize (and other spellings), from the Old French apentiz & apentis (appendage, attached building), the construct being apent (past participle of apendre (to hang against)) + -iz (the French -is ) from the unattested Vulgar Latin –ātīcium (noun use of neuter of the unattested –ātīcius, the construct being the Latin -āt(us) (past participle suffix) + -īcius (the adjectival suffix)). Old French picked up apentis from the Medieval Latin appendicium (from the Classical Latin appendo (to hang) & appendere (to hang from). A less common alternative variant to describe a shed with a sloping roof projecting from a wall or the side of a building was pentice. Penthouse is a noun & verb, penthousing is a verb and penthoused & penthouslike are adjective; the noun plural is penthouses. The adjectives penthouseish & penthousesque are non-standard.
First published in 1965, Penthouse magazine was one of many ventures (in many fields) which proved unwilling or unable to adapt to the changes wrought by the internet and the atomization of the delivery of content; its last print edition (after a few stuttering years) appeared in 2023 although there must remain some perception of value in the name because of the decades-long prominence of the title and it's not impossible there will be a revival, even if it's unlikely to re-appear in the glossy magazine format of old. In Australia, for students of the print industry the comparison between the “men’s magazines” Penthouse and Playboy (first published in 1953, on-line since 2020 and a print “annual edition” appeared in 2025) was something like that between the “women’s magazines” Cosmopolitan (since 1965 in its current niche) and Cleo (1972-2016) in that the two pairings were superficially similar but different in emphasis. Not too much should be made of that because although identifiably there were “Cosmo women” & “Cleo women” (presumably with some overlap at the margins), between Penthouse and Playboy there were probably more similarities than variations. Structuralists explained the difference between the two genres: “men’s magazines” were bought by men so they could look at pictures of women not wearing clothes while “women’s magazines” were bought by women so they could look at pictures of women wearing clothes.
When the lovely Ms Schiffer appeared on the cover of the December 1993 edition of Penthouse, the editors may not have been aware of the beast which was coming to consume them but it was in April 1993 CERN (in 1953 the Conseil Européen pour la Recherche Nucléaire (European Council for Nuclear Research) but the following year re-named Organisation européenne pour la recherche nucléaire (European Organization for Nuclear Research) with the acronym retained because it was both more mnemonic and pronounceable than OERN) released into the public domain details of technology which would allow the free development of applications using the www (world wide web) which ran atop the internet, making indexed content more easily accessible and distributable. When in April 1993 the NCSA (National Center for Supercomputing Applications) released version 1.0 of its Mosaic web browser, it triggered a social and industrial revolution which (variously on TikTok, X (formerly known as Twitter), FoxNews and such) continues to unfold. Mosaic wasn’t the first web browser but it was the first to gain a critical mass and the applications which superseded it claimed many victims including Penthouse magazine.
Iso, the Grifo and the Penthouse
One of the most admired of the
trans-Atlantic hybrids of the post-war years (1945-1973) which combined elegant
coachwork, (hopefully) high standards of craftsmanship and the effortless, low-cost
power of large-displacement American V8 engines, the Iso Grifo was produced between
1965-1974 by the Italian manufacturer Iso Autoveicoli. Styled by Bertone’s Giorgetto Giugiaro (b
1938) with engineering handled by the gifted Giotto Bizzarrini (1926-2023), the
Grifo initially used a 327 cubic inch (5.3 litre) version of the small-block
Chevrolet V8, coupled with the equally ubiquitous Borg-Warner (four & five speed) manual gearbox or robust General Motors (GM) Turbo-Hydramatic automatics. Later, after some had been built with the
big-block Chevrolet V8, GM began to insist on being paid up-front for hardware
so Iso negotiated with the more accommodating Ford Motor Company (FoMoCo) and switched
to 351 cubic inch (5.8 litre) versions of their 335 (Cleveland) engine.
Iso was already familiar with the mechanical configuration,
production of their Rivolta coupe, equipped also with the Chevrolet 327, having
begun in 1962. The Rivolta, let alone
the Grifo was quite a change of direction for Iso which until then had produced
a variety of appliances, scooters & moto-cycles, it’s most famous product
the Isetta, one of the generation of “bubble cars” which played such a part in
putting Europeans back on (three or four) wheels during the re-construction of
the early post-war years. Surprisingly,
despite the prominence of the Isetta name and the Italian association, barely a
thousand were actually manufactured by Iso, the overwhelming majority produced
in many countries by BMW and others to which a license was granted. The bubble cars were a product of the economic circumstances of post-war Europe and the ones produced in England even used the single rear wheel which had been abandoned by Iso because of the inherent instability; UK taxation laws made three-wheelers significantly cheaper and only a motor-cycle license was required to drive one. Powered by tiny two and four-stroke engines,
their popularity waned as “real” cars such as the Fiat 500 (1955-1975) and later the BMC (British Motor Corporation) Mini (1959-2000) emerged; although costing little more than the bubble cars, they
offered more space, performance and practicality. By the early 1960s, the bubble cars were almost extinct but, as a tiny specialized niche, they never completely
vanished and the Isetta is enjoying a twenty-first century revival as model
urban transportation, including the option of (Greta Thunberg (b 2003) approved) electric propulsion. Once dismissed as dated and even absurd, their bug-eyed look is now thought to have "retro-charm".
The Rivolta was thus quite a jump up-market and, while the engine wasn't the bespoke thoroughbred found in a Ferrari or Aston-Martin, the rest of the specification justified the high price. Unlike some of the British interpretations
using American V8s, Iso insisted on modernity, the platform probably the best
of the era with a body welded to a pressed-steel chassis, a combination
which proved both light and stiff. Just
as importantly, given the high rate of corporate failure among those attracted
to this potentially lucrative market, it was cost-effective to manufacture,
reliable and easy to service. Probably
the feature which let it rank with the most accomplished of the era was the
sophisticated de Dion rear suspension which, combined with four wheel disc
brakes, lent it a rare competence (surprising some Maserati and Ferrari drivers, their cars with rear suspension designs dating from the horse & buggy era). The
de Dion design was not an independent arrangement but certainly behaved as if
it was and, despite what Mercedes-Benz claimed of their beloved swing-axles,
was superior to many of the independent setups on offer. A noted benefit of the de Dion system is it ensures the rear wheels remain always parallel, quite an important feature
in an axle which has to transmit to the road the high torque output of a big
V8, a lesson Swiss constructor Peter Monteverdi (1934–1998) applied later in
the decade when he went into production using even bigger engines. Iso, with a solid base in accounting and
production-line economics, ran an efficient and profitable operation not beset
by the recurrent financial crises which afflicted so many and the elegant
Rivolta was a success, remaining available until 1970. Some eight hundred were sold.
The Rivolta’s platform proved adaptable. In 1965, Iso released the Grifo coupé which was more overtly oriented to outright performance and strictly a two-seater. With lovely lines and a modified version of the Rivolta’s fine chassis, the Grifo was another product of the fertile imaginations of Giugiaro & Bizzarrini but, in something not untypical in Italian industry of the time, the relationship between the latter and Iso’s founder Renzo Rivolta (1908–1966) soon became strained and was sundered. Bizzarrini would go on to do remarkable things and Iso’s engineers assumed complete control of the Grifo after the first few dozen had been completed. Bizzarrini had pursued a twin-stream development, a competition version called the A3/C with a lower, lightweight aluminum body as well as the road-going A3/L and when he decamped, he took with him the A3/C, to be released also under his name while Iso devoted its attentions to the A3/L, again using engine-transmission combinations borrowed from the Chevrolet Corvette.
The Grifo weighed a relatively svelte 1430 kg (3153 lbs) in what must have been a reasonably slippery shape because the reports at the time confirmed some 240 km/h (150 mph) was easily attained, an increase on that managed by the C2 Corvette (1962-1967 and which turned out to be not aerodynamically efficient as it looked) and, when configured with the taller gearing the factory offered, the factory claimed 260 km/h (162 mph), was possible. A test in the UK in 1966 almost matched that with a verified 161 mph (259 km/h) recorded and two years later, the US publication Car & Driver 1968 tested a 327 Grifo but didn't to a top-speed run, instead estimating 157 mph (253 km/h) should be possible given enough road. There were surprisingly few variations, fewer than two-dozen made with a targa-style removable roof panel and a single, achingly lovely roadster was displayed on Bertone's stand at the 1964 Geneva Motor Show; it remained a one-off although a couple of coupés privately have been converted. What made the Bertone prototype special however was it was a companion to the original A3/L prototype coupé with which it shared a number of distinctive features including (1) a side exhaust rakishly snaking through the passenger side of the cowl and under the rocker panel trim with its an almost matte finish, (2) frontal styling with the then fashionable “twin-nostril” fascia and (3) angled vents in the rear fenders. Although visually similar to the series production Grifos, almost every line on the pair of A3/L prototypes was in some subtle way different.
The one-off Iso Grifo Spider on Bertone's stand, 1964 Geneva Salon, 1964 (left) and as discovered in Rudi Klein's famous shed, Los Angeles, 2024 (right).
Although well-known in the collector community for its large stocks of rusty and wrecked Porsches, Mercedes-Benz and other notable vehicles from the post-war years, the Californian “junkyard” belonging to Rudi Klein (1936-2001) attracted world-wide interest when details were published of the gems which had for decades been secreted in the site's large and secure shed. Mr Klein was a German butcher who in the late 1950s emigrated to the US to work at his trade but quickly discovered a more enjoyable and lucrative living could be had dealing in damaged or wrecked European cars, sometimes selling the whole vehicles and sometimes the parts (“parting out” in junkyard parlance). His Porsche Foreign Auto business had operated for some time before he received a C&D (cease & desist) letter from the German manufacturer’s US attorneys, the result being the name change in 1967 to Porche (sic) Foreign Auto. Unlike many collectors, Mr Klein amassed his collection unobtrusively and, astonishingly to many, apparently with little interest in turning a profit on the rarest, despite some of them coming to be worth millions. After Mr Klein died in 2001, his two sons preserved the collection untouched until, in October 2024,the auction house Sotheby’s began a series of rolling sales, one to go under the hammer the one-off Grifo spider. At some point there was an accident which damaged the nose so a standard Grifo facia was installed and in this form Mr Klein ran it for a while as a road car before parking it in the shed among its illustrious companions. Remarkably original except for the nose, it sold for US$1,875,000 and the expectation is it will be fully restored (including a fabricated replica of the original nose) before appearing on the show circuit. In the decades to come, it will likely spend its time in collections with the occasional outings to auction houses.
1970 Iso Grifo Targa (left) Series Two and 1971 Iso Grifo Can-Am (454) Targa. Only four Series II Can-Ams were built with the targa roof.
The bodywork was
revised in 1970, subsequent cars listed as Series Two models. The revisions included detail changes to the
interior, improvements to the increasingly popular air-conditioning system and
some alterations to the body structure, the hydraulics and electrical
system, some necessitated by new regulatory requirements in Europe but required mostly in an attempt to remain compliant with the more
onerous US legislation. The most obvious
change was to the nose, the headlamps now partially concealed by flaps which
raised automatically when the lights were activated. Presumably the smoother nose delivered
improved aerodynamics but the factory made no specific claims, either about
performance or the drag co-efficient (CD) number.
1972 Iso Lele & 1972 Iso Fidia.
In 1972, an
unexpected change in the power-train was announced. After almost a decade exclusively using Chevrolet engines, Iso issued a press release confirming that henceforth, the
Series Two Grifo would be powered by Ford’s Boss 351 cubic inch (5.8
litre) 335 series (Cleveland) V8. In the
state of tune (close to that fellow Italian
specialist De Tomaso were using in their mid-engined Pantera) chosen, the Ford engine
was similar in size, weight to the small-block Chevrolet and delivered similar
power and torque characteristics so the driving experience differed
little although there were 22 high-performance Leles using a tuned 351, all with a ZF five-speed manual gearbox. The other improvement in performance was presumably Iso’s balance sheet. The switch had been
made because internal policy changes at GM meant they were now insisting on
being paid up-front for their product whereas Ford was still prepared to mail an invoice with a payment term. The
change extended to the other models in the range, the Lele coupé and Fidia
saloon and while the Chevrolet/Ford split in the Lele was 125/157, the circumstances of the time meant that of the 192 Fidias made, only 35 were fitted with the 351.
1969 Iso Grifo 7 Litre (427).
One of the trends which made machines of the 1960s so memorable was a tendency never to do in moderation what could be done in excess. In 1968, Iso announced the Grifo 7 Litre, built following the example of the US manufacturers who had with little more than a pencil and the back of an envelope worked out the economics of simple seven litre engines were more compelling than adding expensive components like overhead camshafts and fuel-injection to five litre engines; in the US, gas (petrol) was then relatively cheap and and assumed by most to be limitless. Gas wasn’t as cheap in Italy or the rest of Europe but Iso’s target market for the Grifo was those who either could afford the running costs or (increasingly) paid their bills with OPM (other people’s money) so in those circles fuel consumption wasn’t something often considered or much discussed. The new version used a 427 cubic inch (7.0 litre) version of the big-block Chevrolet V8, bigger and heavier than the 327 so the driving characteristics of the nose-heavy machine were changed but contemporary reports praised the competence of the chassis, the de Dion rear-end notably superior in behavior compared with the Corvette’s independent rear suspension although some did note it took skill (which meant often using some restraint) effectively to use the prodigious power. Tellingly, the most receptive market for the Grifos, small and big-block, was the FRG (Bundesrepublik Deutschland (Federal Republic of Germany; the old West Germany) 1949-1990) with its network of highways without the tiresome speed limits elsewhere imposed and (even in Italy), often enforced. The Autobahn really was the Grifo's native environment.
1971 Iso Grifo Can Am (454).
Faster it certainly was although the factory’s claim of a top speed of 186 mph (a convenient 300 km/h) did seem optimistic to anyone with a slide-rule and there appears not to be any record of anyone verifying the number although one published test did claim to have seen well over 255 km/h (150 mph) with the Grifo still "strongly accelerating" before “running out of road”. It had by then become a genuine problem. Gone were the happy times when testers still did their work on public roads; increased traffic volumes by the late 1960s meant the often deserted stretches of highway (in 1956 an English journalist had taken a Mercedes-Benz 300SLR Coupé to 183 mph (294 km/h) on the autobahn) were now rare but whatever the terminal velocity, nobody seemed to suggest the 7 litre Grifo lacked power. In 1970, after Iso’s stock of the by-then out-of-production triple carburetor 427 were exhausted, the big-block car was re-named Can-Am and equipped instead with a 454 cubic inch (7.5 litre) version, the name an allusion to the unlimited displacement Group 7 sports car racing series run in North America in which the big-block Chevrolets were long the dominant engine.
Despite the increased displacement, power actually dropped a little because the 454 was detuned a little to meet the then still modest anti-emission regulations. Officially, the 454 was rated at 395 HP (gross horsepower) but the numbers in that era were often at best indicative: The Boss 429 Mustang was said to produce 375 HP whereas the 500 cubic inch (8.2 litre) V8 in the FWD! (front-wheel-drive) Cadillac Eldorado was rated at 400; a comparison of their performance belies the numbers and the difference is not all accounted for by the Eldorado's weight and power-sapping accessories. As early as the the mid-1960s Detroit had begun understating the output of many of their high-performance engines and as politicians and insurance companies (for their own reasons) became interested, the trend continued.
1971 Iso Grifo Can Am (454).
Unlike the 427 which breathed through three two barrel carburetors, the 454 was equipped with less intricate induction, a single four barrel and while with output (officially) dropping from 435 to 395 HP, performance was s little blunted although it's probable few owners often went fast enough to tell the difference. What didn’t change between the 7 Litre and the Can Am was its most distinctive feature, the modification to the hood (bonnet) made to ensure the additional height of the 427's induction system could be accommodated. The raised central section, the factory dubbed "the penthouse".
Not everyone admired the stark simplicity, supposing, not unreasonably, Giugiaro might have done something more in sympathy with its surroundings. Critics more stern would have preferred a curvaceous scoop, blister or bulge and thought the penthouse amateurish, an angular discordance bolted unhappily atop Giugiaro’s flowing lines but for those brought up in the tradition of brutalist functionalism, it seemed an admirable tribute to what lay beneath. The days of the big-block Grifo were however numbered. In 1972, with Chevrolet no longer willing to extent credit and Ford’s big-block (429 & 460) engines re-tuned as low-emission (for the time) units suitable for pickup trucks and luxury cars, the Can-Am was retired. So the small-block 351 Grifo became the sole model in the range but it too fell victim to changing times, production lasting not long beyond the first oil shock (triggered by the OAPEC (Organization of Arab Petroleum Exporting Countries) on 17 October 1973 imposing an embargo on crude oil exports to certain countries) which made gas suddenly not only much more expensive but sometimes also scarce and the whole ecosystem of the thirsty trans-Atlantic hybrids became threatened; in little more than a year, Iso was one of the many dinosaurs driven extinct. Decades later, the survivors of the 414 sold are highly desirable; fine examples of the small-block Grifos attract over US$500,000, the few dozen penthouse have sold for close to a million and the rare early A3/Cs for even more.
Not fans of brutalist functionalism were the Lancia-loving types at Road & Track (R&T) magazine in the US. Late in 1974, R&T published their 1975 buyer’s guide for imported and domestically-built smaller cars (R&T neither approving of nor understanding why anyone would wish to buy a big American car) and surprisingly, there were reviews of the Grifo, Lele and Fidia although the last of these sold in the US some two years earlier had been titled as 1973 models, the company having never sought to certification to continue sales although, given nothing had been done to modify them to meet the new safety regulations, that would likely have been pointless unless the strategy was to seek a "low volume" exemption, something improbable by 1975.
A tale of two penthouses: Paradoxically, as installed in the Grifo the induction system of the big-block Chevrolet V8 sat a little lower than that of the small-block Ford (a not unusual anomaly in the small-block vs big-block world) so the Ford-engined Grifos (right) used a taller penthouse than those fitted with the Chevrolet unit.
The distributors had however indicated to the press all three would return to the US market in 1975, supplying publicity photographs which included a Series II "penthouse" Grifo. A further complication was that during 1974, Ford had discontinued in the US production of the high-performance 351 (the "Cleveland" 335 series which was exiled to Australia) V8 so it wasn't clear what power-train would have been used. Others had the same problem, De Tomaso (which withdrew from the US market in 1974) switching to use tuned versions of the Australian-built 351s but for Iso, the whole issue became irrelevant as the factory was closed late in 1974. R&T's last thoughts on the penthouse appeared in the buyer's guide: "However, the clean lines of the original Grifo have been spoiled by that terrible looking outgrowth on the hood used for air cleaner clearance. For US$28,500 (around US$155,000 in 2025 US$ although direct translation of value is difficult to calculate because of the influence of exchange rates and other variables), a better solution to this problem should have been found."














