Built purely for power and efficiency.It’s a question of hundreds if not thousandths of a second. The objective is to push the Audi R15 plus to the limit – it’s always a challenge to triumph in the 24 Hours of Le Mans, after all. This special model is designed, constructed and simulated on the basis of the Audi R15 TDI. The designers were asked to improve further on a fully-fledged sportscar ... right down to the last detail. drive it! takes a look behind the scenes as the engineers work on the Audi Le Mans racer.