Super fast Go-Kart racing (http://www.dpccars.com/motorcycle-09/05-01-09page-Super-fast-Go-Kart-racing.htm) I was thinking when will they crash.

My boys are currently thinking of putting a TL-1000 engine in a drifter cart. They have the mock-ups ready, and they're thinking a drift cart will suit their purposes nicely, as long as it's as wide as it is long.