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Bizzarrini Ersus. p. A. was an Italian automotive manufacturer inside 1960s founded by ex- Alfa Romeo, Ferrari and ISO manufacture, Giotto Bizzarrini. The company built only a few highly developed and innovative sport and racing motor vehicles before failing in 1969. Notable models include the actual 5300 GT Strada along with the P538S.Originally Prototipi Bizzarrini s. r. l., the name was improved to Bizzarrini S. p. A. in 1966. The Bizzarrini marque continues to be revived with several concept cars in the particular 2000s.Giotto Bizzarrini was delivered in Livorno, Italy in 1926. His father was the rich landowner who got their start in a family with strong roots in Tuscany plus the city of Livorno. His grandfather, also named Giotto Bizzarrini, was a biologist who had worked with Guglielmo Marconi on his / her inventions, especially the radio, following which one on the Livorno Library sections ended up being named The Bizzarrini Library.Bizzarrini graduated as an engineer in the University of Pisa within 1953. He taught briefly just before joining Alfa Romeo throughout 1954. He worked for Alfa Romeo through 1954 to 1957. He began working intended for Ferrari in 1957, eventually becoming controller associated with experimental, Sports and GT vehicle development. He worked at Ferrari like a developer, designer, test driver, and chief engineer regarding five years. His developments there incorporated the Ferrari 250 TR, the Ferrari 250 GT SWB (Quick Wheelbase Berlinetta or Berlinetta Passo Corto), and the 1962 Ferrari 250 GTO.

Bizzarrini had been 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 economic backers, Count Giovanni Volpi, owner of Scuderia Serenissima, hired Bizzarrini to upgrade a Ferrari 250 GT SWB, with chassis number #2819GT for you 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 layout a V-12 engine to get a GT car to become built by another dissatisfied Ferrari customer, Ferruccio Lamborghini. Lamborghini considered the resulting engine to get too highly strung, and ordered that the idea be detuned.

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Bizzarrini worked since 1964 with regard to Iso Rivolta and formulated three models: Iso Rivolta GT, Iso Grifo both A3L along with A3C versions. His work was in order to develop a pressed steel body chassis for Iso cars. Renzo Rivolta hired him as consultant to the Iso Gordon GT venture which became the Iso Rivolta GT. The Iso Gordon GT prototype was made from the Gordon-Keeble. The Gordon Keeble GT seemed to be designed in 1960 by Giugiaro. Bizzarrini tested the vehicle and was impressed with the powerful V8 Corvette engine plus the rear De Dion tube useful for the GT:'Rivolta experienced me test the prototype. I liked its De Dion tube and especially the Corvette serps. It was the first time I had driven just one. It was superior to help Ferrari's engines, having the same power but with a more immediate throttle response. 'The Iso Rivolta GT ended up being a Giugiaro designed several seater with beautiful physique, speed, comfort and handling, and was a effective car for ISO having 799 units sold. Powered by a 327ci Chevrolet Corvette V8 engine using a classic De Dion back suspension design with forced steel monocoque bodywork around pressed steel frame framework. Unveiled to the press in 1963, production continued until 1970.The Iso Grifo A3L was a monstrous idea to get a super coupé, the L coming from Lusso. The result of the particular brilliant Giugiaro and Bizzarrini working together, it was based with a shortened Iso Rivolta GT chassis and was debuted on the 1963 Turin show. The Grifo epitomised the actual 1960s Italian style with its handsome low and extensive handmade bodywork. It was the most effective production car tested by Autocar Magazine in 1966 using a top speed of 160 mph (260 km/h). Later versions of this Grifo were powered by way of a big block Chevrolet Corvette 435 bhp (324 kW; 441 PS) powerplant. These 90 handbuilt units are distinguishable by the raised "pagoda style" information bonnet. Some of these Iso Grifo 7 Litri products were rebuilt later with even bigger engines.

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The thought of Bizzarrini was to use the 3AL cars for levels of competition. The competition versions from the Grifo were named Iso Grifo A3C, C for Competizione or maybe Corsa. A new lightweight riveted lightweight alloy body was designed in addition to built by Piero Drogo. It was an aggressively designed machine, oriented to endurance backrounds. It uses normal ISO underpinnings but the engine was moved further back in the chassis frame compared to Grifo A3L, protruding well into the 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 twenty nine cars were bodied inside plastic/fiberglass by Piero Drogo in Carrozzeria Sports Cars with Modena. A3Cs were widely competed. Some cars entered this 1964 and 1965 The Mans 24 hour, 1965 Nürburgring 1000 along with 1965 Sebring. It achieved a The Mans class win in both years and also a 9th overall in 1965 without factory support. A3Cs were one on the fastest cars on LeMans' Mulsanne Immediately in both years.

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