This is a Lego Technic RC car i made. It doesnt require that many pieces, but finding the right wheels might be a problem. Also, the Power Functions cost a bit by themselves.
Step 1: Parts List
there are 24 black pins
Step 2: Motors and Wheels
Step 3: Third Wheel
sorry the pics are backwards
Step 4: Putting It Together
Step 5: Wiring
you dont have to have the colored plates on, but they help you match the motor to the reciever and controller.
Step 6: Controls
pic 1. If you push both sticks foward, it will go forward. Opposite directions will turn it.
pic 2. If you push the red stick forward and the blue one back ot will go forward. Same direction will turn ot.
For both pics, the reverse can change the forward direction to the opposite end, with the same stick movements.
You are supposed to be looking at the black switches on the remote.