I can see how a cheap RC car would come apart so its receiver and main motor would go into a cylinder. But don't you typically get only one motor in a little RC car? What do you look for in an RC car for conversion?

If I were building a dynamic diver, I would think I'd have to dismantle three RC cars so I could get power for three dimensions: forward/reverse, left/right (as a thruster with a prop, or rudder servo), and up/down (again as thruster or plane servo). Then my command module would be three separate transmitters, one from each car, that I'd have to tie together and coordinate. Am I off the mark or what?