I hate to brag, but I did help Adam come up with what may be the best URL ever for his eBay Motors/Google Maps mashup:
Adam and I will be at Mashup Camp in a couple of weeks, along with 300 close friends. I've heard that DudeWheresMyUsedCar will be shown there -- it could be a top contender for the top prize (a Sun server delivered in person by Jonathan Schwartz). If you are attending, I'll see you there!
Update: The site seems to be down right now. I've pinged Adam to find out whats going on.
Update 2: OK, the site is back up, and its ready for the Mashup Camp competition.