Lamborghini V12 discontinued their first-generation V12 after the Murcielago, opting for a brand-new V12 that first saw use on the Lamborghini Aventador. When Ferruccio Lamborghini set out to compete with Ferrari, he contracted Giotto Bizzarrini to design the engine for his car and, according to some accounts, paid him a bonus for every horsepower over what Ferrari's V12 could produce. The finished V12, with minor improvements, went on to become the 6.5 litre powering the Lamborghini Murciélago LP 640, and completed its service for Lamborghini with the final version of the Murciélago, the Murciélago LP 670-4 SuperVeloce. The engine was designed from
BMW V12 LM aerodynamics and safety. Debuting at the 1998 24 Hours of Le Mans test day in May, the two V12 LM chassis set times which were not favorable, their best lap placing them 11th behind factory entries from Porsche, Toyota, Nissan, and Mercedes-Benz, all of which were running grand tourer-style cars instead of the theoretically faster Le Mans prototypes. By the time qualifying for the race came around in June, the BMWs had improved to 6th fastest in qualifying, placing behind two Porsches, two Mercedes, and a Toyota. Unfortunately, during the race both cars suffered quickly. Vibrations were detected in the