I used to do demo derbies. Might be some smashed up sheet metal and mangled radiators, but I WOULD move. Also I seldom drive small cars. You can shove stuff around pretty good and even a 5 ft run at it helps. Back and forth, make room. Bounce over that curb, its just a car and mostly metal. Make it move. The air bags switches take an amount of deceleration to go off. Pushing d=some cars around at low speed probably wont do it on the older rigs I drive.