 Although the weight and lower output of a diesel engine tend to keep them away from automotive racing applications, there are many diesels being raced in classes that call for them, mainly in truck racing and tractor pulling, as well in types of racing where these drawbacks are less severe, such as land speed record racing or endurance racing.Even diesel-engined dragsters exist, despite the diesel's drawbacks of weight and low peak rpm, specifications central to performance in this sport.However, in 2006, the new Audi R10 TDI LMP1 entered by Joest Racing became the first diesel-engined car to win the 24 Hours of Le Mans.