I know many sanctioniing bodies don't care, it's one of the frustrating aspects of racing w/different groups/geography. But I read thru SOVREN's rules recently, and they had an interesting approach: Pick which PERIOD rules you prep to, SCCA of FIA, but you have to go all the way with one or the other, no cherry picking. They are a very picky group, very rigid. But maybe this could be an opening someone could try with other clubs, "here are the FIA homologation rules, how could I not be period correct if I adhere to them" argument. Of course by now, most "vintage" racers are a melange of bits, pieces, and rules, so it is hard to prep to FIA, so let's just all go to Chicago and have fun with our Alfas however they're prepared
