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Bizzarrini Ersus. p. A. was an Italian automotive manufacturer from the 1960s founded by ex- Alfa Romeo, Ferrari and ISO professional, Giotto Bizzarrini. The company built a small number of highly developed and state-of-the-art sport and racing motor vehicles before failing in 1969. Notable models include the 5300 GT Strada and also the P538S.Originally Prototipi Bizzarrini s. r. l., the name was modified to Bizzarrini S. p. A. in 1966. The Bizzarrini marque has become revived with several concept cars in your 2000s.Giotto Bizzarrini was delivered in Livorno, Italy in 1926. His father was the rich landowner who came from a family with powerful roots in Tuscany as well as the city of Livorno. His grandfather, also named Giotto Bizzarrini, was a biologist who had caused Guglielmo Marconi on the inventions, especially the radio, following which one on the Livorno Library sections had been named The Bizzarrini Stockpile.Bizzarrini graduated as an engineer within the University of Pisa inside 1953. He taught briefly prior to joining Alfa Romeo inside 1954. He worked for Alfa Romeo coming from 1954 to 1957. He began working with regard to Ferrari in 1957, eventually becoming controller associated with experimental, Sports and GT auto development. He worked at Ferrari as a developer, designer, test driver, and chief engineer for five years. His developments there incorporated the Ferrari 250 TR, the Ferrari 250 GT SWB (Short Wheelbase Berlinetta or Berlinetta Passo Corto), and the 1962 Ferrari 400 GTO.

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Bizzarrini had been fired by Ferrari over the "palace revolt" of 1961. He became part of 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 monetary backers, Count Giovanni Volpi, owner of Scuderia Serenissima, hired Bizzarrini to enhance a Ferrari 250 GT SWB, with chassis number #2819GT to help GTO specifications. This resulted in this Ferrari 250 GT SWB Drogo often known as the "Breadvan".Bizzarrini's engineering company, Societa Autostar, was commissioned to design and style a V-12 engine for just a GT car to always be built by another disappointed Ferrari customer, Ferruccio Lamborghini. Lamborghini considered the resulting engine to get too highly strung, and ordered that that be detuned.

Bizzarrini worked since 1964 for Iso Rivolta and produced three models: Iso Rivolta GT, Iso Grifo both A3L and A3C versions. His work was to build up a pressed steel figure chassis for Iso autos. Renzo Rivolta hired him as consultant to the Iso Gordon GT venture which became the Iso Rivolta GT. The Iso Gordon GT prototype was developed from the Gordon-Keeble. The Gordon Keeble GT has been designed in 1960 by means of Giugiaro. Bizzarrini tested the car and was impressed from the powerful V8 Corvette engine along with the rear De Dion tube useful for the GT:'Rivolta got me test the prototype. I liked its De Dion tubing and especially the Corvette serp. It was the very first time that I had driven just one. It was superior to help Ferrari's engines, having the same power but which has a more immediate throttle result. 'The Iso Rivolta GT was a Giugiaro designed several seater with beautiful human body, speed, comfort and handling, and was a successful car for ISO together with 799 units sold. Powered by a 327ci Chevrolet Corvette V8 engine with a classic De Dion backside suspension design with pressed steel monocoque bodywork more than pressed steel frame chassis. Unveiled to the press in 1963, production continued until 1970.The Iso Grifo A3L was a monstrous idea for the super coupé, the L coming by Lusso. The result of the actual brilliant Giugiaro and Bizzarrini doing the job together, it was based on the shortened Iso Rivolta GT framework and was debuted on the 1963 Turin show. The Grifo epitomised your 1960s Italian style having its handsome low and large handmade bodywork. It was the most effective production car tested through Autocar Magazine in 1966 having 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) serps. These 90 handbuilt units are distinguishable by the raised "pagoda style" scoop bonnet. Some of these Iso Grifo 7 Litri units were rebuilt later with a great deal larger engines.

The idea of Bizzarrini was to utilize the 3AL cars for opposition. The competition versions from the Grifo were named Iso Grifo A3C, C for Competizione or even Corsa. A new lightweight riveted lightweight alloy body was designed in addition to built by Piero Drogo. It was an more boldly designed machine, oriented to endurance contests. It uses normal ISO underpinnings however the engine was moved further back the chassis frame versus Grifo A3L, protruding well into the actual driver's cabin, fitted with hot cams and fed by four big Weber carburettors, giving more than 600 bhp (298 kW; 406 PS).

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About 29 A3C sport cars were built within the ISO name. Five of these 28 cars were bodied inside plastic/fiberglass by Piero Drogo from Carrozzeria Sports Cars throughout Modena. A3Cs were widely ran. Some cars entered the 1964 and 1965 Le Mans 24 hour, 1965 Nürburgring 1000 as well as 1965 Sebring. It achieved a Le Mans class win in both years and also a 9th overall in 1965 without factory support. A3Cs were one in the fastest cars on LeMans' Mulsanne Straight in both years.

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