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
V12 engine where any adjustment method that could go wrong in flight was to be avoided. As initially built, the V12 was rated at at 2,400 rpm, weighing about . The engine powered the car (named ‘Toodles V' for Coatalen's wife Olive's pet name) to several records in 1913 and 1914. In 1909 Renault pioneered aero V12s with a 60 degree air-cooled engine with individual finned cylinders and F-head valve arrangement, driven by single camshaft in the crankcase. This was developed to a unit (96 x 140 mm) which weighed and produced at 1,800 rpm. The propeller was driven from the nose