umm....

http://www.carstuckgirls.com/

"Videos of girls in cars stuck in the mud. It is some sort of surreal combination of car/foot/shoe/mud/helpless girl fetishes. I'm really at a loss."

EDIT:

"This just gets weirder and weirder. I just found a bunch more related fetish sites

http://www.crankandpump.com/
http://www.carstuckadventure.com/index.html
http://www.pumpthatpedal.com/
http://www.letsgetstuck.com/

There is even a community devoted to this:

http://www.stuckworld.com/

Definitely the weirdest thing I've seen on the 'net in oh... days."