For anyone whos wondering what stock cars they'll be competing against go here http://www.moutons.org/sccasolo/Lists/2003/stockc.html
These cars seem like they'd be pretty good
Audi TT Coupe
BMW 325 E
Celica All-Trac Turbo
1.8T models ('02+)
Dan - have you had any experience with the 1.8Ts?