looks to me like the driver has no idea how to use the gears properly and is in 2nd when he should be in 3rd the lap before at the same corner, he is sitting far to high up the rev range the result the back end steps out and wallop!! although he does look to be in 3rd at the point of it going wrong.
check out the passenger getting flung about!

http://www.youtube.com/watch?v=ulRu-...eature=related

steve