Bizzarrini P538 drivers Edgar Berney and Andre Wicky, but records indicate both retired after three hours with a cooling problem. A second team in a production-based Bizzarrini A3/C, driven by Sam Posey and Massimo Natili, was disqualified after a pit lane violation, possibly while returning with serious frame damage. American Ferrari driver Mike Gammino then commissioned a Lamborghini 4.0-liter V12 powered car, which he raced once. Bizzarrini attempted to build a second, 3.5-litre V12 car for Le Mans, but was unable to complete it before bankruptcy. Beginning in the mid-1970s and continuing at least through the 1990s, former Bizzarrini engineer Salvatore Diomante
Production car speed record any such claims. Examples of the difficulties faced were shown up in the dispute between Bugatti and Hennessey over which car was the world's fastest. On 4 July 2010 the Bugatti Veyron Super Sport reached two-way average. Bugatti built 30 Super Sports (5 of them named World Record Edition). At the time the record was set it was known that the customer cars were electronically limited to . Guinness Book of Records (which had listed speeds by British cars with modified rev limiter as production car records in the 1990s) listed the unlimited as production car speed record. Yet, 3