DriveIt! looks at a race car that Audi hopes will bring home top honors in the "24 hours of Le Mans." But the Audi R18 e-tron quattro's first lap wasn't on the famed racetrack. It was on Le Mans' city streets. Team driver Tom Kristensen, the all-time leading Le Mans champion, took a tour in his diesel hybrid and Drive It was along for the ride.