DUH they flip over easily. if i make te green higher, it flips over, but if its too slow, it just goes back and forth very subtly. ive used that soda contructor, the "piston" things are always confusing and my stuff always falls apart, its so annoying. what kinda specs should i use for a basic car with a light? like what weight, piston types, and RBG of the pistons?