But we already have "driftable cars" and "cars with bodykits". Imho we need:
a) Competitor to UF-1000, for example something like fiat 500, beatle, or lada 1200.
b) New classes like the infamous WRC. Even RB-4 is pretty good in rallycross tracks, it doesn't hurt if we would get whole rallycross-class. Other good class would be "historic class", where could be cars like porsche 356 or triumph spitfire, or even some american muscle cars.
Imho adding yet again generic street car would be pointless.