Speed Racer's ultimate driving machine, the Supercharged Formula 1, fabulous Mach 5, has high-tech control functions designed and built by Pops and Sparky. This is a 1/18 scale full function radio control car. Forward, backward, stop, turn left, or turn right, you're in control. It needs one 9 volt battery for the transamitter, and 4 AA batteries (not included) to operate.