case and point:
Gatoralso 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.