Car System vehicles are fully assembled and equipped with a can-type motor and built-in reed switch for accessories. Power is supplied by a pair of rechargeable ni-cad batteries. A built-in socket allows batteries to be charged in the vehicle (charging time is about 7 hours and vehicles operate for many hours on a full charge). Riding on rubber tires, each vehicle actually steers as it moves around the corners. The front axle has a fully operational linkage and a strong magnet that follows the guide wire. (Colors and markings of vehicles may vary from photographs).