If I ever do get to autox again, I'll class the Rex in STX- that's where it will be the most competitive.
The last autox I participated in, I ran CS (cstock). I was running a 99 miata (for sale if anyone is interested), and while the car was competitive, the driver behind the wheel was not. As they say, the best mod you can do for autox is "fix the nut behind the wheel."
My first car that I autoxed, I was in STS, and I had the most fun. (Integra) I trophied a couple times in novice, but would would be a good second (or two) behind when I ran with the "big boys"- but these guys were some of the best in the country. It was fun to get spanked by these guys, and I was able to compare my times to them to see how much less I sucked each time.
nk