You are right in that it is VERY exciting to watch !! There are several vids out there of the Wheel Stand Nationals and some of the sky crawling is WILD !! I'd surely do it if I built a purpose built car with the expectation that it could be totaled ! WHAT A RUSH to be seeing sky and going forward at a rapid rate at the same time !
http://www.youtube.com/watch?v=Ved6QYUm0-8