Release, also what control method?

I'm wondering what type of control system might be best for the vehicle. The "tank style" turning method (when you  turn right or left, the two sides accelerate in opposite directions) that I've implemented is fun for chaotic driving, but if you want to go further I guess something like the hinge method might be better (make the two front wheels move on hinges) if more complicated for the player to (eventually) build.

Anyways, It is a fun challenge to get at least a kilometer of driving with this system, so that's good.