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Bizzarrini Ersus. p. A. was an Italian automotive manufacturer from the 1960s founded by previous Alfa Romeo, Ferrari and ISO industrial engineer, Giotto Bizzarrini. The company built a small amount of highly developed and sophisticated sport and racing motor vehicles before failing in 1969. Notable models include the actual 5300 GT Strada plus the P538S.Originally Prototipi Bizzarrini s. r. l., the name was modified to Bizzarrini S. p. A. in 1966. The Bizzarrini marque have been revived with many concept cars in the actual 2000s.Giotto Bizzarrini was blessed in Livorno, Italy in 1926. His father was any 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 caused Guglielmo Marconi on his inventions, especially the radio, following which one from the Livorno Library sections ended up being named The Bizzarrini Collection.Bizzarrini graduated as an engineer in the University of Pisa throughout 1953. He taught briefly before joining Alfa Romeo inside 1954. He worked for Alfa Romeo through 1954 to 1957. He began working intended for Ferrari in 1957, eventually becoming controller involving experimental, Sports and GT vehicle development. He worked at Ferrari being a developer, designer, test driver, and chief engineer for five years. His developments there integrated the Ferrari 250 TR, the Ferrari 250 GT SWB (Short Wheelbase Berlinetta or Berlinetta Passo Corto), and the 1962 Ferrari 250 GTO.

Bizzarrini has been fired by Ferrari throughout the "palace revolt" of 1961. He became part of Automobili Turismo e Hobby (ATS)), a company started because of the ex-Ferrari engineers to make a Formula 1 single seater along with a GT sport car, the A. T. S. Serenissima.One of ATS's personal 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 this Ferrari 250 GT SWB Drogo also referred to as the "Breadvan".Bizzarrini's engineering company, Societa Autostar, was commissioned to design and style a V-12 engine to get a GT car to always be built by another dissatisfied Ferrari customer, Ferruccio Lamborghini. Lamborghini considered the resulting engine to get too highly strung, and ordered that the item be detuned.

Bizzarrini worked since 1964 intended for Iso Rivolta and formulated three models: Iso Rivolta GT, Iso Grifo both A3L and A3C versions. His work was to produce a pressed steel framework chassis for Iso vehicles. Renzo Rivolta hired him as consultant for the Iso Gordon GT project which became the Iso Rivolta GT. The Iso Gordon GT prototype originated from the Gordon-Keeble. The Gordon Keeble GT was designed in 1960 by simply Giugiaro. Bizzarrini tested the auto and was impressed by the powerful V8 Corvette engine plus 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 first-time I had driven a single. It was superior in order to Ferrari's engines, having the same power but that has a more immediate throttle reaction. 'The Iso Rivolta GT was a Giugiaro designed several seater with beautiful human body, speed, comfort and handling, and was a productive car for ISO along with 799 units sold. Powered by a 327ci Chevrolet Corvette V8 engine which has a classic De Dion backed suspension design with constrained steel monocoque bodywork above pressed steel frame chassis. Unveiled to the media in 1963, production continued until 1970.The Iso Grifo A3L ended up being a monstrous idea for just a super coupé, the L coming by Lusso. The result of your brilliant Giugiaro and Bizzarrini operating together, it was based using a shortened Iso Rivolta GT framework and was debuted on the 1963 Turin show. The Grifo epitomised your 1960s Italian style using its handsome low and large handmade bodywork. It was the most effective production car tested through Autocar Magazine in 1966 which has a top speed of one hundred sixty mph (260 km/h). Later versions of this Grifo were powered by way of big block Chevrolet Corvette 435 bhp (324 kW; 441 PS) serps. These 90 handbuilt units are distinguishable with the raised "pagoda style" details bonnet. Some of these Iso Grifo 7 Litri products were rebuilt later with a great deal larger engines.

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The concept of Bizzarrini was to utilize the 3AL cars for levels of competition. The competition versions on the Grifo were named Iso Grifo A3C, C for Competizione or perhaps Corsa. A new lightweight riveted lightweight alloy body was designed in addition to built by Piero Drogo. It was an boldy designed machine, oriented to endurance contests. It uses normal ISO underpinnings though the engine was moved further in the chassis frame as opposed to Grifo A3L, protruding well into the driver's cabin, fitted with hot cams and fed by 4 big Weber carburettors, giving more than 300 bhp (298 kW; 406 PS).

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

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