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The AC Frua or AC 428 is a British GT built by
AC Cars AC Cars, originally incorporated as Auto Carriers Ltd., is a British specialist automobile manufacturer and one of the oldest independent car makers founded in Britain. As a result of bad financial conditions over the years, the company was re ...
from 1965 to 1973. Production was 81 cars built in total: 49
coupé A coupe or coupé (, ) is a passenger car with a sloping or truncated rear roofline and two doors. The term ''coupé'' was first applied to horse-drawn carriages for two passengers without rear-facing seats. It comes from the French past parti ...
s (known as fastbacks), 29
convertible A convertible or cabriolet () is a passenger car that can be driven with or without a roof in place. The methods of retracting and storing the roof vary among eras and manufacturers. A convertible car's design allows an open-air driving expe ...
s, and 3 special bodied.


History

The Frua is built on an
AC Cobra The AC Cobra, sold in the United States as the Shelby Cobra and AC Shelby Cobra, is a sports car manufactured by British company AC Cars, with a Ford V8 engine. It was produced intermittently in both the United Kingdom and later the United ...
427 Mark III chassis extended by 6 inches (150 mm). Chassis were built at the AC plant in
England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...
then shipped to Frua's workshop in
Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...
where the body was fitted and then sent back to England to have the power train and trim added. The cost was high and the cars could not be sold at a competitive price. Unlike similar cars such as the
Iso Grifo ISO is the most common abbreviation for the International Organization for Standardization. ISO or Iso may also refer to: Business and finance * Iso (supermarket), a chain of Danish supermarkets incorporated into the SuperBest chain in 2007 * Iso ...
,
Iso Rivolta ISO Rivolta is an Italian car and motorbike manufacturer active in the motor vehicle sector since 1938. Over the years, the company has taken various names, including Isothermos, Iso Autoveicoli Spa in 1952, Iso Rivolta in 1962, Iso Motors in 1 ...
,
Monteverdi Claudio Giovanni Antonio Monteverdi (baptized 15 May 1567 – 29 November 1643) was an Italian composer, choirmaster and string player. A composer of both secular and sacred music, and a pioneer in the development of opera, he is considered ...
, and
De Tomaso De Tomaso Automobili ltd. (previously known as De Tomaso Modena SpA) is an Italian car-manufacturing company. It was founded by the Argentine-born Alejandro de Tomaso (1928–2003) in Modena in 1959. It originally produced various prototypes an ...
models of the period, the AC Frua features fully independent racing based coil spring suspension. The AC Frua was never fully developed because AC Cars lacked the financial means. The car's main drawback is a tendency of the V8's heat to bleed into the cabin.


Chassis

Chassis construction was similar to most Italian supercars of that era, with square and rectangular tubing connecting the steel body to the frame. Though the 4-inch (100 mm) tubular chassis allowed both coupé and convertible versions to be rigid, the design was intricate and prone to rust. The bonnets and boot lids were fabricated from aluminum.


Performance

The AC Frua competed with
Ferrari Ferrari S.p.A. (; ) is an Italian luxury sports car manufacturer based in Maranello, Italy. Founded by Enzo Ferrari (1898–1988) in 1939 from the Alfa Romeo racing division as ''Auto Avio Costruzioni'', the company built its first car in ...
,
Lamborghini Automobili Lamborghini S.p.A. () is an Italian brand and manufacturer of luxury sports cars and SUVs based in Sant'Agata Bolognese. The company is owned by the Volkswagen Group through its subsidiary Audi. Ferruccio Lamborghini (1916–1993) ...
, and
Maserati Maserati S.p.A. () is an Italian luxury vehicle manufacturer. Established on 1 December 1914, in Bologna, Italy, the company's headquarters are now in Modena, and its emblem is a trident. The company has been owned by Stellantis since 2021. Ma ...
models. Built over a stretched AC Cobra 427 chassis, the car had immense performance; the big-block
Ford FE engine The Ford FE engine is a Ford V8 engine used in vehicles sold in the North American market between 1958 and 1976. The FE was introduced to replace the short-lived (in the USA) Ford Y-block engine, which American cars and trucks were outgrowing. It ...
had larger capacity, more torque and more power than similar Italian cars, but in a car of similar weight. John Mclellan wrote in his book "Classic ACs, Auto Carrier to Cobra" that Derek Hurlock once said to journalist Mike Tailor: "I like the 428 because it fits my image of a true GT Car". He is quoted in '' Autocar'' "Like anything exclusive, especially from craftsmen, it costs a lot of money. For this you get one of the fastest cars on the road, guaranteed to make an impression anywhere, and backed by a small company that cares. This one AC that joined that select company of very fast, very luxurious touring automobiles which moved effortlessly from current model to collector's piece". The magazine published a road test report in 1968 of a 428 coupé, and recorded a maximum speed of 141 mph (227 km/h) along with a 0 - 60 mph (97 km/h) time of 6.2 seconds. The acceleration time was fractionally better than the magazine's testers had achieved with an
Aston Martin DB6 The Aston Martin DB6 is a grand tourer made by British car manufacturer Aston Martin and was produced from September 1965 to January 1971. The DB6 succeeded the Aston Martin DB5 and featured improved aerodynamics and specification over its pred ...
, but the Aston Martin was comfortably ahead on top speed. The AC's overall fuel consumption for the test came in at 15.6 mpg (18.1 L/100 km), roughly 15% better than the heavy Aston Martin. The AC 428 coupé sported a recommended UK retail price of £5,573 (including automatic transmission), to the manual transmission Aston Martin DB6's £4,460 - itself roughly twice that of a 4.2 litre
Jaguar E-Type The Jaguar E-Type, or the Jaguar XK-E for the North American market, is a British sports car that was manufactured by Jaguar Cars Ltd between 1961 and 1974. Its combination of beauty, high performance, and competitive pricing established the m ...
roadster at £2,225. Towards the end of the production run a couple of prototypes for an extended range were produced. There was a four-door version of the coupe and a more streamlined version of the convertible that included electrically operated "pop-up" headlamps. Neither were developed due to the precarious state of the company finances. The AC Frua may be confused with the very similar looking
Pietro Frua Pietro Frua (2 May 1913 - 28 June 1983) was one of the leading Italian coachbuilders and car designers during the 1950s and 1960s. Early years Frua was born in Turin, the centre of coachbuilding in northern Italy. He was the fourth son of Angela, ...
designed
Maserati Mistral The Maserati Mistral (''Tipo AM109'') is a 2-seat gran turismo produced by Italian car manufacturer Maserati between 1963 and 1970. The successor to the 3500 GT, it was styled by Frua and bodied by Maggiora of Turin. A total of 828 coupés and ...
. However, only the front quarter windows and door handles are shared.


See also

*
British motor industry The automotive industry in the United Kingdom is now best known for premium and sports car marques including Aston Martin, Bentley, Caterham Cars, Daimler, Jaguar, Lagonda, Land Rover, Lister Cars, Lotus, McLaren, MG, Mini, Morgan and Ro ...


References

*


External links


AC 428 history
*
Information and reviews for the 1960 AC 428
{{AC vehicles Sports car manufacturers Borough of Elmbridge Frua Grand tourers Cars introduced in 1965 1970s cars