How fast can your self-build rally racer cross the finish line? Build your rally car step-by-step and decorate it with your own paint or markers. Done decorating? Start racing! This wooden S.T.E.M. DIY kit introduces your kid to the concepts of motion, elasticity, and momentum, faster than your child’s car can race across the finish line. Build your own car, load it into the launcher and watch it go zoom!