2 things- The hoods cannot be opened at the track. I would think that the event sponsers and track officials would want to do a leak and safety check at the very least at the track after the drive.

support vehicles are not allowed at the track? So when the race is done, or if someone breaks, they will have to drive back to Comp to get their support vehicle if they have one or thumb a ride? If the round trip drive is not part of the competition why require this?