Lap around Nurburgring Nordschleife:
http://www.youtube.com/watch?v=R3PujMC0WEY
Interview with the driver (interesting part from 1:00 to 1:30):
http://www.youtube.com/watch?v=WI0ebmlS8aY
My german is a little rough but he is saying the car has a system that sprays water on the tires when he is going through a turn. It makes the tires more slippery so he can hold a drift longer and also to cool the tire down. In the trunk there is a water tank, a pressurized tank and a water pump. German engineering FTW