Derek, Wouldn't a Crossfire be in the same class as a Mercedes SLK? Or don't they have classes for them either?
I'm not trying to pretend I know anything about how SCCA or IMSA goes about classifying cars, but wouldn't they just look at the Factory specs. of the cars and go from there? Putting them in the same "class" with other cars with similar H.P. and weight.
Maybe it's all more complicated than that, but that's how they do it at the drags.
If they don't have the "specs." for our car, why don't you FAX them a copy of any automotive magazines road test, since obviously these sanctioning bodies can't seem to do there own home work. How sad.