The guy who thrashed his Cutlass actually won that year (2 years ago I believe). I think that payout was 10K
Here's a link to last year's winning pass by Steve Blue.
YouTube - Camaro wheelie
I think that the track has raised the winning payout to somewhere in the mid-20k range this year.
There's a guy that shows up with a Gremlin, with the expressed purpose of flipping it over backwards. There are some incredible photos/video of the thing teetering on the rear bumper...wacky.
Ron Leek is the man.
Brian