I have build a RC Car primary for the build sake. It is a Tamiya kit called Gravel Hound. Here is a picture of all the parts.
Here the car is assembled. The canopy is spray painted on the inside with an airbrush.
The car has later been equip with front light, back light and break light, which is automatic controlled by a small PCB. The PCB is quite simple and consist primary of an AVR CPU and some resistors.