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Bizzarrini S. p. A. was an Italian automotive manufacturer in the 1960s founded by previous Alfa Romeo, Ferrari and ISO manufacture, Giotto Bizzarrini. The company built a small amount of highly developed and superior sport and racing motor vehicles before failing in 1969. Notable models include the 5300 GT Strada and also the P538S.Originally Prototipi Bizzarrini azines. r. l., the name was altered to Bizzarrini S. p. A. in 1966. The Bizzarrini marque have been revived with a number of concept cars in the 2000s.Giotto Bizzarrini was delivered in Livorno, Italy in 1926. His father was a rich landowner who originated in a family with robust roots in Tuscany along with the city of Livorno. His grandfather, also named Giotto Bizzarrini, was a biologist who had worked with Guglielmo Marconi on the inventions, especially the radio, following which one on the Livorno Library sections had been named The Bizzarrini Selection.Bizzarrini graduated as an engineer from the University of Pisa throughout 1953. He taught briefly ahead of joining Alfa Romeo with 1954. He worked for Alfa Romeo by 1954 to 1957. He began working with regard to Ferrari in 1957, eventually becoming controller regarding experimental, Sports and GT car or truck development. He worked at Ferrari being a developer, designer, test driver, and chief engineer with regard to five years. His developments there bundled the Ferrari 250 TR, the Ferrari 250 GT SWB (Brief Wheelbase Berlinetta or Berlinetta Passo Corto), and the 1962 Ferrari 400 GTO.

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Bizzarrini ended up being fired by Ferrari through the "palace revolt" of 1961. He became part connected with Automobili Turismo e Sports activity (ATS)), a company started through the ex-Ferrari engineers to develop a Formula 1 single seater along with a GT sport car, the A. T. S. Serenissima.One of ATS's fiscal backers, Count Giovanni Volpi, owner of Scuderia Serenissima, hired Bizzarrini to update a Ferrari 250 GT SWB, with chassis number #2819GT to GTO specifications. This resulted in the particular Ferrari 250 GT SWB Drogo generally known as the "Breadvan".Bizzarrini's engineering company, Societa Autostar, was commissioned to design a V-12 engine for a GT car to always be built by another discontented Ferrari customer, Ferruccio Lamborghini. Lamborghini considered the resulting engine to become too highly strung, and ordered that it be detuned.

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Bizzarrini worked since 1964 for Iso Rivolta and designed three models: Iso Rivolta GT, Iso Grifo both A3L and also A3C versions. His work was to produce a pressed steel figure chassis for Iso automobiles. Renzo Rivolta hired him as consultant towards the Iso Gordon GT project which became the Iso Rivolta GT. The Iso Gordon GT prototype was developed from the Gordon-Keeble. The Gordon Keeble GT ended up being designed in 1960 by means of Giugiaro. Bizzarrini tested the car and was impressed with the powerful V8 Corvette engine and also the rear De Dion tube used by the GT:'Rivolta acquired me test the prototype. I liked its De Dion tubing and especially the Corvette powerplant. It was the first time I had driven a single. It was superior to help Ferrari's engines, having the same power but with a more immediate throttle answer. 'The Iso Rivolta GT was a Giugiaro designed a number of seater with beautiful physique, speed, comfort and handling, and was a successful car for ISO using 799 units sold. Powered by a 327ci Chevrolet Corvette V8 engine which has a classic De Dion rear suspension design with pressed steel monocoque bodywork above pressed steel frame framework. Unveiled to the click in 1963, production continued until 1970.The Iso Grifo A3L seemed to be a monstrous idea for the super coupé, the L coming by Lusso. The result of your brilliant Giugiaro and Bizzarrini functioning together, it was based using a shortened Iso Rivolta GT chassis and was debuted at the 1963 Turin show. The Grifo epitomised the 1960s Italian style using its handsome low and large handmade bodywork. It was the best production car tested by means of Autocar Magazine in 1966 which has a top speed of 160 mph (260 km/h). Later versions of the Grifo were powered with a big block Chevrolet Corvette 435 bhp (324 kW; 441 PS) motor. These 90 handbuilt units are distinguishable from the raised "pagoda style" information bonnet. Some of these Iso Grifo 7 Litri units were rebuilt later with a great deal larger engines.

The idea of Bizzarrini was to use the 3AL cars for rivalry. The competition versions from the Grifo were named Iso Grifo A3C, C for Competizione or perhaps Corsa. A new lightweight riveted aluminium body was designed and built by Piero Drogo. It was an aggressively designed machine, oriented to endurance races. It uses normal ISO underpinnings however the engine was moved further back the chassis frame compared to Grifo A3L, protruding well into your driver's cabin, fitted with hot cams and fed by four big Weber carburettors, giving more than four hundred bhp (298 kW; 406 PS).

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All around 29 A3C sport cars were built within the ISO name. Five of these 30 cars were bodied inside plastic/fiberglass by Piero Drogo on Carrozzeria Sports Cars within Modena. A3Cs were widely ran. Some cars entered this 1964 and 1965 The Mans 24 hour, 1965 Nürburgring 1000 and also 1965 Sebring. It achieved a The Mans class win in both years along with a 9th overall in 1965 with no factory support. A3Cs were one in the fastest cars on LeMans' Mulsanne Directly in both years.

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