Mechanics Lab - Police Car By Clementoni it is an amazing scientific kit that teaches the principles of mechanics and engineering. Build 2 Police Cars and run it at full speed using a remote controller. Contains over 300 components to assemble, 2 electric motors for rear-wheel drive and front steering wheel, gears, and a transmission unit. Connecting the cars to the radio frequency receiver children can drive the cars via remote control and start breathtaking car chases. The illustrated manuals and the free special app will guide children step by step in the building of the models.