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
Lincoln L-head V12 engine V-8 in the KA-Series. Its 67° architecture was a significant departure, with four main bearings, offset blocks, and side-by-side connecting rods rather than fork-and-blade. It produced the same 125 hp specific output as the outgoing V-8 despite a somewhat smaller displacement of 381.7 cubic inches. The KA's 381.7 cubic inch V12 was enlarged for 1934 to replace the 1932-design 448. This new engine displaced 414 cu. in. (6.8 L) and produced 150 hp (112 kW). All Lincolns in 1934 (both KA and KB models) were powered by this new 414 V12, and the distinction between models was dropped, with all