Some street racing/Drifting (mostly imports):

http://www.djelektrique.com/

http://driftworks.insanehardware.com/

http://www.driftclub.com/

More domestic oriented:

http://www.opentracking.com/track_video.htm

And for some weird stuff not related to autos at all goto http://formen.ign.com/news/20689.html make sure you scroll down to the bottom & click all the dates under the Hardcore TV archive. Lot's of funny stuff there. My fav is a vid of these 2 dudes armwrestling and one guy's arm snaps. Kinda fly-eque in a way. Or at least I remember someones arm snapping like that in "The Fly", cmon I was 6 when it came out!