I don't know if is the right place for suggestions, but I'm suggesting a class that isn't in AMS, the Campeonato Brasileiro de Turismo, considered as an "access category" for Stock Car. This category generally is the last category to race before the Stock Car in the weekend. So we would have the Copa Petrobras, the F3 Brasil and now the Brasileiro de Turismo, missing only the Mercedes-Benz Grand Challenge, that I'll sugggest in a new post. Here some images:
This was I believe floated in Reiza 51 and the response was that those cars aren't too different from the Copa Montana cars. In fact I think they're basically identical other than the bodywork since they replaced Copa Montana when it ended in 2012. The Mercedes Benz Challenge was also asked about, and those cars are apparently 300hp 4WD cars very similar to the Lancer Cup RS.