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Bizzarrini Utes. p. A. was an Italian automotive manufacturer inside 1960s founded by previous Alfa Romeo, Ferrari and ISO industrial engineer, Giotto Bizzarrini. The company built a small amount of highly developed and advanced sport and racing automobiles before failing in 1969. Notable models include the particular 5300 GT Strada and the P538S.Originally Prototipi Bizzarrini s. r. l., the name was changed to Bizzarrini S. p. A. in 1966. The Bizzarrini marque may be revived with several concept cars in the 2000s.Giotto Bizzarrini was blessed in Livorno, Italy in 1926. His father was some sort of rich landowner who originated in a family with solid roots in Tuscany and the city of Livorno. His grandfather, also named Giotto Bizzarrini, was a biologist who had caused Guglielmo Marconi on his / her inventions, especially the radio, following which one on the Livorno Library sections had been named The Bizzarrini Catalogue.Bizzarrini graduated as an engineer in the University of Pisa with 1953. He taught briefly before joining Alfa Romeo in 1954. He worked for Alfa Romeo through 1954 to 1957. He began working intended for Ferrari in 1957, eventually becoming controller connected with experimental, Sports and GT car or truck development. He worked at Ferrari as a developer, designer, test driver, and chief engineer regarding five years. His developments there incorporated the Ferrari 250 TR, the Ferrari 250 GT SWB (Small Wheelbase Berlinetta or Berlinetta Passo Corto), and the 1962 Ferrari 250 GTO.

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Bizzarrini had been fired by Ferrari during the "palace revolt" of 1961. He became part associated with Automobili Turismo e Activity (ATS)), a company started from the ex-Ferrari engineers to make a Formula 1 single seater and also a GT sport car, the A. T. S. Serenissima.One of ATS's economic backers, Count Giovanni Volpi, owner of Scuderia Serenissima, hired Bizzarrini to up grade a Ferrari 250 GT SWB, with chassis number #2819GT to help GTO specifications. This resulted in the particular Ferrari 250 GT SWB Drogo also called the "Breadvan".Bizzarrini's engineering company, Societa Autostar, was commissioned to layout a V-12 engine for any GT car to always be built by another not satisfied Ferrari customer, Ferruccio Lamborghini. Lamborghini considered the resulting engine to get too highly strung, and ordered that it be detuned.

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Bizzarrini worked since 1964 with regard to Iso Rivolta and produced three models: Iso Rivolta GT, Iso Grifo both A3L and A3C versions. His work was to formulate a pressed steel shape chassis for Iso cars and trucks. Renzo Rivolta hired him as consultant towards the Iso Gordon GT challenge which became the Iso Rivolta GT. The Iso Gordon GT prototype got its start from the Gordon-Keeble. The Gordon Keeble GT was designed in 1960 through Giugiaro. Bizzarrini tested the automobile and was impressed with the powerful V8 Corvette engine and the rear De Dion tube employed for the GT:'Rivolta experienced me test the prototype. I liked its De Dion tv and especially the Corvette serp. It was the very first time I had driven one. It was superior to Ferrari's engines, having the same power but having a more immediate throttle reaction. 'The Iso Rivolta GT has been a Giugiaro designed a number of seater with beautiful entire body, speed, comfort and handling, and was a effective car for ISO using 799 units sold. Powered by a 327ci Chevrolet Corvette V8 engine using a classic De Dion backside suspension design with forced steel monocoque bodywork over pressed steel frame chassis. Unveiled to the media in 1963, production continued until 1970.The Iso Grifo A3L has been a monstrous idea for any super coupé, the L coming through Lusso. The result of the particular brilliant Giugiaro and Bizzarrini operating together, it was based on the shortened Iso Rivolta GT chassis and was debuted on the 1963 Turin show. The Grifo epitomised your 1960s Italian style having its handsome low and extensive handmade bodywork. It was the quickest production car tested by means of Autocar Magazine in 1966 having a top speed of 160 mph (260 km/h). Later versions of your Grifo were powered by the big block Chevrolet Corvette 435 bhp (324 kW; 441 PS) motor. These 90 handbuilt units are distinguishable through the raised "pagoda style" deal bonnet. Some of these Iso Grifo 7 Litri items were rebuilt later with even bigger engines.

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The concept of Bizzarrini was to use the 3AL cars for competitors. The competition versions from the Grifo were named Iso Grifo A3C, C for Competizione or maybe Corsa. A new lightweight riveted aluminium lightweight body was designed along with built by Piero Drogo. It was an boldy designed machine, oriented to endurance contests. It uses normal ISO underpinnings however the engine was moved further the government financial aid the chassis frame than the Grifo A3L, protruding well into the actual driver's cabin, fitted with hot cams and fed by 4 big Weber carburettors, giving more than 400 bhp (298 kW; 406 PS).

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Close to 29 A3C sport cars were built underneath the ISO name. Five of these up to 29 cars were bodied inside plastic/fiberglass by Piero Drogo from Carrozzeria Sports Cars with Modena. A3Cs were widely ran. Some cars entered the particular 1964 and 1965 Le Mans 24 hour, 1965 Nürburgring 1000 as well as 1965 Sebring. It achieved a The Mans class win in both years along with a 9th overall in 1965 without the need of factory support. A3Cs were one in the fastest cars on LeMans' Mulsanne Right in both years.

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