I think one of the things you guys who are pointing at the ITR Mustang V8s are completely missing is one of the fundamental differences between ST and IT. ST is a displacement-based class, while IT is a HP-based class. Those V8 Mustangs (and did you miss the 5.0L Camaros?) aren't even going to be the class leaders in ITR; the S2000s, RX8s, 944s, and even the 3-series Bimmers are (in all likelyhood) going to be the cars to beat in ITR. And they're all under 3 litres...

I also can't see what the big deal is in allowing IT cars (in their IT prep) to compete in ST (or SM cars to compete in IT for that matter); they aren't ever going to compete with real ST prepped cars, but they will help fill the fields, while at the same time allowing IT drivers a chance to race at the national level if they so desire. Win-win IMO.

Now, I do see an issue when a WCT-legal car can't compete in STU; but I think that's a whole separate issue.