If your brakes have ever given out at 30mph, you've probably lost bodily fluids as you try to think about all the things you've done wrong in life. This race car driver hardly had that kind of time to contemplate things other than the preservation of his life—100mph just doesn't give you that much to work with.
Luckily, he's able to maneuver through the course and comes upon a restricted part of the road where he's able to slow down gradually. Not before having to dodge a truck and trees, but it beats the alternative of having to dodge a solid wall.