Bizzarrini 5300 Spyder S.I.

Bizzarrini Utes. p. A. was an Italian automotive manufacturer inside 1960s founded by past Alfa Romeo, Ferrari and ISO electrical engineer, Giotto Bizzarrini. The company built limited highly developed and innovative sport and racing motor vehicles before failing in 1969. Notable models include this 5300 GT Strada plus the P538S.Originally Prototipi Bizzarrini ohydrates. r. l., the name was changed to Bizzarrini S. p. A. in 1966. The Bizzarrini marque may be revived with several concept cars in the particular 2000s.Giotto Bizzarrini was given birth to in Livorno, Italy in 1926. His father was a rich landowner who came from a family with strong roots in Tuscany plus 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 on the Livorno Library sections had been named The Bizzarrini Selection.Bizzarrini graduated as an engineer inside the University of Pisa in 1953. He taught briefly prior to joining Alfa Romeo with 1954. He worked for Alfa Romeo via 1954 to 1957. He began working regarding Ferrari in 1957, eventually becoming controller of experimental, Sports and GT car development. He worked at Ferrari as being a developer, designer, test driver, and chief engineer pertaining to five years. His developments there involved the Ferrari 250 TR, the Ferrari 250 GT SWB (Limited Wheelbase Berlinetta or Berlinetta Passo Corto), and the 1962 Ferrari 400 GTO.

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Bizzarrini has been fired by Ferrari in the "palace revolt" of 1961. He became part of Automobili Turismo e Activity (ATS)), a company started from the ex-Ferrari engineers to make a Formula 1 single seater as well as 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 enhance a Ferrari 250 GT SWB, with chassis number #2819GT in order to GTO specifications. This resulted in your Ferrari 250 GT SWB Drogo also referred to as the "Breadvan".Bizzarrini's engineering company, Societa Autostar, was commissioned to layout a V-12 engine for the GT car to possibly be built by another dissatisfied Ferrari customer, Ferruccio Lamborghini. Lamborghini considered the resulting engine to become too highly strung, and ordered that the item be detuned.

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Bizzarrini worked since 1964 intended for Iso Rivolta and developed three models: Iso Rivolta GT, Iso Grifo both A3L as well as A3C versions. His work was in order to develop a pressed steel framework chassis for Iso automobiles. Renzo Rivolta hired him as consultant for the Iso Gordon GT task which became the Iso Rivolta GT. The Iso Gordon GT prototype got its start from the Gordon-Keeble. The Gordon Keeble GT had been designed in 1960 by means of Giugiaro. Bizzarrini tested the automobile and was impressed through the powerful V8 Corvette engine along with the rear De Dion tube used by the GT:'Rivolta had me test the prototype. I liked its De Dion pipe and especially the Corvette powerplant. It was the first time I had driven one particular. It was superior to Ferrari's engines, having the same power but having a more immediate throttle result. 'The Iso Rivolta GT had been a Giugiaro designed a number of seater with beautiful physique, speed, comfort and handling, and was a productive car for ISO with 799 units sold. Powered by a 327ci Chevrolet Corvette V8 engine using a classic De Dion raise suspension design with hard pressed steel monocoque bodywork above pressed steel frame chassis. Unveiled to the push in 1963, production continued until 1970.The Iso Grifo A3L seemed to be a monstrous idea to get a super coupé, the L coming via Lusso. The result of the particular brilliant Giugiaro and Bizzarrini operating together, it was based on a shortened Iso Rivolta GT chassis and was debuted on the 1963 Turin show. The Grifo epitomised the particular 1960s Italian style having its handsome low and large handmade bodywork. It was the best production car tested simply by Autocar Magazine in 1966 using a top speed of 160 mph (260 km/h). Later versions of the particular Grifo were powered with a big block Chevrolet Corvette 435 bhp (324 kW; 441 PS) engine. These 90 handbuilt units are distinguishable through the raised "pagoda style" info bonnet. Some of these Iso Grifo 7 Litri products were rebuilt later with even bigger engines.

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The concept of Bizzarrini was to utilize the 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 body was designed along with built by Piero Drogo. It was an aggressively designed machine, oriented to endurance backrounds. It uses normal ISO underpinnings but the engine was moved further last the chassis frame versus 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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About 29 A3C sport cars were built within the ISO name. Five of these 30 cars were bodied throughout plastic/fiberglass by Piero Drogo in Carrozzeria Sports Cars within Modena. A3Cs were widely ran. Some cars entered the actual 1964 and 1965 The Mans 24 hour, 1965 Nürburgring 1000 and also 1965 Sebring. It achieved a Le Mans class win in both years as well as a 9th overall in 1965 with no factory support. A3Cs were one in the fastest cars on LeMans' Mulsanne Right in both years.

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