case and point:

Gator

also some friends of mine ran a student built B&S 10hp baja car at a SVTOA meet a few years back. They used tie downs to compress the springs and lower the ride. The officials wouldn't let them compete but gave them a practice run. Their practice run ended up being the fastest of the day.

I personally am on a Formula SAE team, and if you want to see fast autox's these are the cars, they are purpose built for autox conditions, weight ~450lb and have ~85hp. Oh and they are mandated by the rules to be able to pull 1.3g lat. If there is an FSAE car there, it will be the fastest car, unless it breaks.

Geoff C. Turner 99 Black SVT -mine 99 Blue SE V6 ATX -mom's 96 Black SE MTX -sister's All with 278mm front rotors