From our friends at SMS Supercars.

We currently have classes for all Mustangs and American Muscle. Check out the entry form and flyer at www.smscarshow.com to see the list of classes. We recommend getting your form in by September 10 so we can be sure to enter you in your class (All day-of-show entries will be judged in the MM and SS class as day-of-show).

[Source: SMS Supercars]