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Bizzarrini Utes. p. A. was an Italian automotive manufacturer inside the 1960s founded by former Alfa Romeo, Ferrari and ISO electrical engineer, Giotto Bizzarrini. The company built few highly developed and advanced sport and racing autos 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 transformed to Bizzarrini S. p. A. in 1966. The Bizzarrini marque may be revived with several concept cars in the actual 2000s.Giotto Bizzarrini was blessed in Livorno, Italy in 1926. His father was the rich landowner who came from a family with solid 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 or her inventions, especially the radio, following which one in the Livorno Library sections was named The Bizzarrini Collection.Bizzarrini graduated as an engineer inside University of Pisa throughout 1953. He taught briefly prior to joining Alfa Romeo within 1954. He worked for Alfa Romeo coming from 1954 to 1957. He began working pertaining to Ferrari in 1957, eventually becoming controller regarding experimental, Sports and GT car development. He worked at Ferrari as being a developer, designer, test driver, and chief engineer intended for five years. His developments there included the Ferrari 250 TR, the Ferrari 250 GT SWB (Small Wheelbase Berlinetta or Berlinetta Passo Corto), and the 1962 Ferrari 300 GTO.

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Bizzarrini has been fired by Ferrari through the "palace revolt" of 1961. He became part of Automobili Turismo e Activity (ATS)), a company started through the ex-Ferrari engineers to build 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 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 often known as the "Breadvan".Bizzarrini's engineering company, Societa Autostar, was commissioned to style a V-12 engine for the GT car to always be built by another dissatisfied Ferrari customer, Ferruccio Lamborghini. Lamborghini considered the resulting engine for being too highly strung, and ordered that the idea be detuned.

Bizzarrini worked since 1964 with regard to Iso Rivolta and formulated three models: Iso Rivolta GT, Iso Grifo both A3L as well as A3C versions. His work was to formulate a pressed steel framework chassis for Iso autos. Renzo Rivolta hired him as consultant to the Iso Gordon GT project 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 means of Giugiaro. Bizzarrini tested the automobile and was impressed because of the powerful V8 Corvette engine along with the rear De Dion tube used by the GT:'Rivolta got me test the prototype. I liked its De Dion conduit and especially the Corvette engine. It was the new I had driven one. It was superior in order to Ferrari's engines, having the same power but having a more immediate throttle response. 'The Iso Rivolta GT ended up being a Giugiaro designed four seater with beautiful human body, speed, comfort and handling, and was a profitable car for ISO using 799 units sold. Powered by a 327ci Chevrolet Corvette V8 engine using a classic De Dion backed suspension design with constrained steel monocoque bodywork around pressed steel frame framework. Unveiled to the click in 1963, production continued until 1970.The Iso Grifo A3L ended up being a monstrous idea for any super coupé, the L coming from Lusso. The result of the brilliant Giugiaro and Bizzarrini doing the job together, it was based using a shortened Iso Rivolta GT chassis and was debuted in the 1963 Turin show. The Grifo epitomised the actual 1960s Italian style which consists of handsome low and broad handmade bodywork. It was the fastest production car tested by simply Autocar Magazine in 1966 having a top speed of 160 mph (260 km/h). Later versions of the particular Grifo were powered by way of a big block Chevrolet Corvette 435 bhp (324 kW; 441 PS) serps. These 90 handbuilt units are distinguishable with the raised "pagoda style" deal bonnet. Some of these Iso Grifo 7 Litri products were rebuilt later with even bigger engines.

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Thinking about Bizzarrini was to utilize 3AL cars for levels of competition. The competition versions with the Grifo were named Iso Grifo A3C, C for Competizione or maybe Corsa. A new lightweight riveted aluminium lightweight body was designed and built by Piero Drogo. It was an strongly designed machine, oriented to endurance events. It uses normal ISO underpinnings though the engine was moved further last the chassis frame than the Grifo A3L, protruding well into the particular 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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All around 29 A3C sport cars were built underneath the ISO name. Five of these 30 cars were bodied with plastic/fiberglass by Piero Drogo at Carrozzeria Sports Cars in Modena. A3Cs were widely raced. Some cars entered the actual 1964 and 1965 Le Mans 24 hour, 1965 Nürburgring 1000 and 1965 Sebring. It achieved a Le Mans class win in both years and also a 9th overall in 1965 without any factory support. A3Cs were one from the fastest cars on LeMans' Mulsanne Immediately in both years.

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