[fpv_gtho]

Well depending on how the classes are setup. Currently there's 8 classes. IMO, 4 would be enough. IIRC, the first couple of classes are setup so that existing cars competing in various production classes in Aus can just step in. That allows a higher number of entries due to the ease of entry, but if there was something like a 6000cc, 4000cc, 2000cc and diesel class, the cars would be grouped alot closer but need more modifications.