No Rookie Class huh ... interesting.
I guess it depends on how many people you have going to the AutoX in your region.
Well, sgtsmasher if you don't have the backseats ... I guess just do what GodLovesUgly suggested to you ... and just run it as it is. You definitely will learn where you stand and what mods you will need to do once you get in there.
For you first time ... just go out and have some fun. That's really what it's all about.