Combine wooden and plastic parts with electrical power in this amazing set of ECObuilds™ MOTORIZED RACERS! Take a friend for an imaginary ride on the retro Side car and let the included motor do the work for you. Rebuild into a Formula model and observe the awesome detail of the engine standing out from the vehicle. Mark a specific distance and count how long it takes for the Formula to complete it. Compare this time with the one from the aerodynamic Dragster model and find out which vehicle is faster.