Rob, you are correct on many counts. But the St calss cars are very often NOT trailer queens. ST allows a lot of mods that are NOT allowed in Street Prepared. Granted, an ST car can come off the street and compete, but a properly setup SP car will have erasers for tires and would not be streetable. A REAL SP car is nearly a a road race car minus a race engine and steroids!! Next, what fluid will make an open diff act like an LSD? As to Stock class mods, sure there are many "changes" that can be made (fluids, pads, etc.), but "mods" are very restricted. Basically the money needs to be spent on tires, pads, shocks, and MAYBE front sway bar. The rest is minimal if the car was ordered properly.
Oh, yes, autocrossing is fun. But second place IS first looser!!!
