Audi's chances of defending its title at the 24 Hours of Le Mans rested on one car after two of the team's other contenders crashed Saturday. After 16 hours, Peugeot Sport Total's Sebastien Bourdais led with 232 laps completed. Peugeot teammate Marc Gene was 30 seconds back, and the last remaining Audi, driven at the time by Andre Lotterer, was third. Defending champion Mike Rockenfeller was second in the eighth hour when he tried to pass the slower Ferrari No. 71 driven by Robert Kauffman. Rockenfeller's Audi No. 1 was slightly hit by the Ferrari, slid off the track in darkness and smashed into a guardrail, forcing the deployment of the safety car for the second time in the race. The German driver was able to get out of the cockpit on his own before the wrecked car caught fire. He was taken to a hospital. Read more: http://sports.espn.go.com/rpm/racing/news/story?id=6651727