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Bizzarrini Ersus. p. A. was an Italian automotive manufacturer in the 1960s founded by ex - Alfa Romeo, Ferrari and ISO electrical engineer, Giotto Bizzarrini. The company built few highly developed and innovative sport and racing motor vehicles before failing in 1969. Notable models include the particular 5300 GT Strada and the P538S.Originally Prototipi Bizzarrini ersus. r. l., the name was modified to Bizzarrini S. p. A. in 1966. The Bizzarrini marque have been revived with a number of concept cars in this 2000s.Giotto Bizzarrini was created in Livorno, Italy in 1926. His father was the rich landowner who originated from a family with sturdy roots in Tuscany as well as the city of Livorno. His grandfather, also named Giotto Bizzarrini, was a biologist who had worked with Guglielmo Marconi on their inventions, especially the radio, following which one in the Livorno Library sections had been named The Bizzarrini Library.Bizzarrini graduated as an engineer inside University of Pisa inside 1953. He taught briefly prior to joining Alfa Romeo with 1954. He worked for Alfa Romeo via 1954 to 1957. He began working intended for Ferrari in 1957, eventually becoming controller involving experimental, Sports and GT automobile 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 (Short Wheelbase Berlinetta or Berlinetta Passo Corto), and the 1962 Ferrari three hundred GTO.

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Bizzarrini seemed to be fired by Ferrari during the "palace revolt" of 1961. He became part of Automobili Turismo e Sports activity (ATS)), a company started by the ex-Ferrari engineers to produce a Formula 1 single seater plus 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 up grade a Ferrari 250 GT SWB, with chassis number #2819GT in order to GTO specifications. This resulted in the Ferrari 250 GT SWB Drogo also called the "Breadvan".Bizzarrini's engineering company, Societa Autostar, was commissioned to design and style a V-12 engine for the GT car to be built by another unhappy Ferrari customer, Ferruccio Lamborghini. Lamborghini considered the resulting engine being 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 and A3C versions. His work was to produce a pressed steel framework chassis for Iso automobiles. Renzo Rivolta hired him as consultant towards Iso Gordon GT venture which became the Iso Rivolta GT. The Iso Gordon GT prototype originated from the Gordon-Keeble. The Gordon Keeble GT ended up being designed in 1960 by means of Giugiaro. Bizzarrini tested the auto and was impressed from 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 conduit and especially the Corvette motor. It was the first time I had driven a single. It was superior to be able to Ferrari's engines, having the same power but having a more immediate throttle response. 'The Iso Rivolta GT has been a Giugiaro designed 4 seater with beautiful 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 having a classic De Dion raise suspension design with hard pressed steel monocoque bodywork above pressed steel frame framework. Unveiled to the mass media in 1963, production continued until 1970.The Iso Grifo A3L was a monstrous idea for just a super coupé, the L coming coming from Lusso. The result of the particular brilliant Giugiaro and Bizzarrini working together, it was based on the shortened Iso Rivolta GT framework and was debuted at the 1963 Turin show. The Grifo epitomised the 1960s Italian style which consists of handsome low and vast handmade bodywork. It was the best production car tested simply by Autocar Magazine in 1966 with a top speed of 160 mph (260 km/h). Later versions of the actual Grifo were powered by a big block Chevrolet Corvette 435 bhp (324 kW; 441 PS) powerplant. These 90 handbuilt units are distinguishable from the raised "pagoda style" information bonnet. Some of these Iso Grifo 7 Litri devices were rebuilt later with a great deal larger engines.

The thinking behind Bizzarrini was to use the 3AL cars for competitors. The competition versions on the Grifo were named Iso Grifo A3C, C for Competizione or even Corsa. A new lightweight riveted lightweight alloy body was designed and built by Piero Drogo. It was an strongly designed machine, oriented to endurance backgrounds. It uses normal ISO underpinnings but the engine was moved further last the chassis frame compared to Grifo A3L, protruding well into your driver's cabin, fitted with hot cameras and fed by several big Weber carburettors, giving more than 300 bhp (298 kW; 406 PS).

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Around 29 A3C sport cars were built underneath the ISO name. Five of these 28 cars were bodied throughout plastic/fiberglass by Piero Drogo at Carrozzeria Sports Cars inside Modena. A3Cs were widely raced. Some cars entered the particular 1964 and 1965 Le Mans 24 hour, 1965 Nürburgring 1000 in addition to 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 with the fastest cars on LeMans' Mulsanne Immediately in both years.

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