dynamic

So I've been thinking of getting into on-road racing as something to do during the cold months. I am a total newb at the classification system that is being used by my local hobby shop, the only one with a track in the area. They use ROAR sportsman touring and worldGT classes that would intrest me, however looking through the tracks rules and ROARs I can't seem to determine what constitutes a touring car or worldGT car. Is a touring car something like the tt01 chassis and the worldGT similiar to the TA05 style chassis?

I'm currently trying to repair an old Fox (58051) and need some parts that I can't seem to find on ebay. What I'm looking for are the rear control arms, both upper and lower, otherwise known as the R-Parts. If anyone has a good set I would definitely be interested.

I just purchased my first re-furb project, a Fox, and it came to me with a non-stock motor that I'm not familiar with. The well worn sticker states the motor is a Parma Yokomo Stock. Some quick searching hasn't turned up much and I though someone on here may be able to shed some light on exactly what it is.