Like
@Jahgee said, the Sultan RS and Banshee 900R probably won't be available to 'rent' for a race just yet, and that's kinda the whole point of this race event. If I make it completely open, people will just abuse it and fly away in a T20. If I can't trust people to not follow the rules at a car show, I can't trust people to follow rules here either. Those cars have been selected to try and make things as fair and equal as possible. Another race event will be held at a later date where people can use whatever car they wish, but this event is not that one.
Slipstream is on which should give those at a disadvantage a better chance. That's the reason I wanted catchup on too, but apparently not everyone likes that.