I'm part-way through this video, and I've seen three of the damned things. Two are missing parts and the third has spray-paint all over its butt.
(WARNING: This video does show at least one person hit by a car. He seems to be okay, but still. And there are about 8 minutes I have yet to watch, so it may get worse. EDIT: Yeah, I just saw someone ejected from a rolling SUV. Definitely NSFW and not for the squeamish or easily offended.)