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Bizzarrini Ersus. p. A. was an Italian automotive manufacturer inside 1960s founded by previous Alfa Romeo, Ferrari and ISO industrial engineer, Giotto Bizzarrini. The company built few highly developed and innovative sport and racing motor vehicles before failing in 1969. Notable models include the actual 5300 GT Strada and also the P538S.Originally Prototipi Bizzarrini utes. r. l., the name was improved to Bizzarrini S. p. A. in 1966. The Bizzarrini marque continues to be revived with quite a few concept cars in the actual 2000s.Giotto Bizzarrini was given birth to in Livorno, Italy in 1926. His father was some sort of rich landowner who originated a family with powerful roots in Tuscany along with the city of Livorno. His grandfather, also named Giotto Bizzarrini, was a biologist who had caused Guglielmo Marconi on their inventions, especially the radio, following which one of the Livorno Library sections was named The Bizzarrini Collection.Bizzarrini graduated as an engineer within the University of Pisa throughout 1953. He taught briefly ahead of joining Alfa Romeo in 1954. He worked for Alfa Romeo coming from 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 to be a developer, designer, test driver, and chief engineer pertaining to five years. His developments there integrated the Ferrari 250 TR, the Ferrari 250 GT SWB (Brief Wheelbase Berlinetta or Berlinetta Passo Corto), and the 1962 Ferrari two hundred and fifty GTO.

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Bizzarrini ended up being fired by Ferrari in the "palace revolt" of 1961. He became part connected with Automobili Turismo e Hobby (ATS)), a company started from the ex-Ferrari engineers to make a Formula 1 single seater and 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 in order to GTO specifications. This resulted in the actual Ferrari 250 GT SWB Drogo also called the "Breadvan".Bizzarrini's engineering company, Societa Autostar, was commissioned to style a V-12 engine for just a 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 the idea be detuned.

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Bizzarrini worked since 1964 for Iso Rivolta and created three models: Iso Rivolta GT, Iso Grifo both A3L and also A3C versions. His work was to develop a pressed steel frame chassis for Iso vehicles. 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 had been designed in 1960 by means of Giugiaro. Bizzarrini tested the car or truck and was impressed with the powerful V8 Corvette engine plus the rear De Dion tube useful for the GT:'Rivolta acquired me test the prototype. I liked its De Dion tube and especially the Corvette motor. It was the first time I had driven a single. It was superior for you to Ferrari's engines, having the same power but with a more immediate throttle reaction. 'The Iso Rivolta GT ended up being a Giugiaro designed 4 seater with beautiful system, speed, comfort and handling, and was a productive car for ISO together with 799 units sold. Powered by a 327ci Chevrolet Corvette V8 engine that has a classic De Dion backed 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 has been a monstrous idea for just a super coupé, the L coming coming from Lusso. The result of this brilliant Giugiaro and Bizzarrini operating together, it was based over a shortened Iso Rivolta GT chassis and was debuted on the 1963 Turin show. The Grifo epitomised the 1960s Italian style with its handsome low and large handmade bodywork. It was the fastest production car tested by simply Autocar Magazine in 1966 having 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) serp. These 90 handbuilt units are distinguishable by the raised "pagoda style" details bonnet. Some of these Iso Grifo 7 Litri models were rebuilt later with a great deal larger engines.

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The thinking behind Bizzarrini was to utilize 3AL cars for competitors. The competition versions in the Grifo were named Iso Grifo A3C, C for Competizione as well as Corsa. A new lightweight riveted aluminum body was designed and built by Piero Drogo. It was an aggressively designed machine, oriented to endurance backrounds. It uses normal ISO underpinnings nevertheless the engine was moved further the government financial aid the chassis frame as opposed to 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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About 29 A3C sport cars were built under the ISO name. Five of these up to 29 cars were bodied with plastic/fiberglass by Piero Drogo with Carrozzeria Sports Cars throughout Modena. A3Cs were widely ran. Some cars entered this 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 plus a 9th overall in 1965 without having factory support. A3Cs were one on the fastest cars on LeMans' Mulsanne Straight in both years.

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