You gotta watch the Karate Chop video under the Cool Video section. That is the funniest thing I have seen in a long time.

http://www.ebaumsworld.com/karatechop.html

ps - I didn't watch the one you listed, cause I wasn't really into watching someone get ejected from a a car. I've seen that in real life, and it ain't pretty. 6 'volunteers' from one station wagon on the freeway, after being clipped by a semi-truck.