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Bizzarrini Utes. p. A. was an Italian automotive manufacturer inside 1960s founded by past Alfa Romeo, Ferrari and ISO engineer, Giotto Bizzarrini. The company built only a few highly developed and sophisticated sport and racing automobiles before failing in 1969. Notable models include the 5300 GT Strada as well as 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 numerous concept cars in this 2000s.Giotto Bizzarrini was born in Livorno, Italy in 1926. His father was some sort of rich landowner who got their start in a family with solid roots in Tuscany and 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 of the Livorno Library sections had been named The Bizzarrini Stockpile.Bizzarrini graduated as an engineer within the University of Pisa throughout 1953. He taught briefly just before joining Alfa Romeo inside 1954. He worked for Alfa Romeo coming from 1954 to 1957. He began working regarding Ferrari in 1957, eventually becoming controller involving experimental, Sports and GT car development. He worked at Ferrari as a developer, designer, test driver, and chief engineer with regard to five years. His developments there bundled the Ferrari 250 TR, the Ferrari 250 GT SWB (Limited Wheelbase Berlinetta or Berlinetta Passo Corto), and the 1962 Ferrari 300 GTO.

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Bizzarrini was fired by Ferrari during the "palace revolt" of 1961. He became part associated with Automobili Turismo e Activity (ATS)), a company started with the ex-Ferrari engineers to produce a Formula 1 single seater along with a GT sport car, the A. T. S. Serenissima.One of ATS's financial backers, Count Giovanni Volpi, owner of Scuderia Serenissima, hired Bizzarrini to update a Ferrari 250 GT SWB, with chassis number #2819GT to be able to GTO specifications. This resulted in this Ferrari 250 GT SWB Drogo also called the "Breadvan".Bizzarrini's engineering company, Societa Autostar, was commissioned to design 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 this be detuned.

Bizzarrini worked since 1964 pertaining to Iso Rivolta and produced three models: Iso Rivolta GT, Iso Grifo both A3L and also A3C versions. His work was to produce a pressed steel frame chassis for Iso cars and trucks. Renzo Rivolta hired him as consultant towards 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 through Giugiaro. Bizzarrini tested the car or truck and was impressed with the powerful V8 Corvette engine and the rear De Dion tube used for the GT:'Rivolta got me test the prototype. I liked its De Dion tv and especially the Corvette serp. It was the very first time I had driven one particular. It was superior to be able to Ferrari's engines, having the same power but that has a more immediate throttle response. 'The Iso Rivolta GT ended up being a Giugiaro designed some seater with beautiful body, speed, comfort and handling, and was a profitable car for ISO with 799 units sold. Powered by a 327ci Chevrolet Corvette V8 engine using a classic De Dion back suspension design with pressed steel monocoque bodywork over pressed steel frame chassis. Unveiled to the press in 1963, production continued until 1970.The Iso Grifo A3L ended up being a monstrous idea for a super coupé, the L coming from Lusso. The result of this brilliant Giugiaro and Bizzarrini functioning 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 having its handsome low and large handmade bodywork. It was the quickest production car tested by Autocar Magazine in 1966 using a top speed of 160 mph (260 km/h). Later versions of your Grifo were powered by the big block Chevrolet Corvette 435 bhp (324 kW; 441 PS) engine. These 90 handbuilt units are distinguishable from the raised "pagoda style" information bonnet. Some of these Iso Grifo 7 Litri units were rebuilt later with a whole lot larger engines.

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The idea of Bizzarrini was to utilize the 3AL cars for opposition. The competition versions in the Grifo were named Iso Grifo A3C, C for Competizione or Corsa. A new lightweight riveted aluminium body was designed and also built by Piero Drogo. It was an boldy designed machine, oriented to endurance events. It uses normal ISO underpinnings though the engine was moved further in the chassis frame compared to the Grifo A3L, protruding well into this driver's cabin, fitted with hot cameras and fed by some big Weber carburettors, giving more than 600 bhp (298 kW; 406 PS).

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Close to 29 A3C sport cars were built within the ISO name. Five of these 29 cars were bodied throughout plastic/fiberglass by Piero Drogo on Carrozzeria Sports Cars inside Modena. A3Cs were widely raced. Some cars entered your 1964 and 1965 The Mans 24 hour, 1965 Nürburgring 1000 along with 1965 Sebring. It achieved a The Mans class win in both years plus a 9th overall in 1965 without factory support. A3Cs were one with the fastest cars on LeMans' Mulsanne Direct in both years.

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