The perfect balance of aerodynamics, transmission, speed, and stylish design has made SONIC F1 the top prospect in the racing community. When equipped with the most power engine, the sun,Sonic F1 races at amazing speeds. It consumes no fossil resources making it an educational tool that teaches alternative energy concepts. Easy to build and fun to play. Have hours of fun experimenting with it in the sun. No batteries required and eight plastic parts to assemble.