[Jim E]

Or.... You can do what I did, but they may not be competition legal.

A neighbor down the street moved out, a new neighbor moved in. 2 weeks later an old abandoned Barbie car was set out for trash. Turns out the direction selector switch in the car is situated in a well and it filled with water from being left outside.The water rusted out the contacts on the switch. Result? Broken toy.

The FP motors, wheels, axles, and battery were in great shape. Add a couple speed controllers, RC controller, a new platform, and you have yourself a robot that will traverse any surface.

Or you can just salvage the motors. They are the same if it's a 12V battery.