I race a 2002 SVTF in Production class in Rally-America. Here we are on the way to winning the Berlin Regional at the New England Forest Rally (previously called Maine Forest Rally.)
There are some really nice folks competing with NASA in Rally Spec Focus.
My car was already sorted when I bought it used and I could have make spec and not afford to race or race as P since many of the allowable RSF mods make the car Group 2 spec for Rally America.
Hope this helps.