I've seen that show a few times now. The wheelie car has its engine mounted in the back and has a hole at the front of the floor so the driver can see out. The stoppie car has a radically shortened wheelbase. The two wheel driving is particularly impressive as its usually done on grass and is very tricky when its wet. The photo below was taken at a show in Detling, Kent. My Vit is roughly in the middle of the line up, the other vehicles belong to the stunt show and other members of the Rhinoriders.