Use the arrow keys to move around. Steering only works when moving, much like an actual car. The point of this is to test out driving simulations, but there's not much to do. There are brick walls to drive into and fall over, and there are even people (only @sotoboss) to trip over (@-MBall-'s car is not powerful enough to cause fatal injuries).
I don't know what else to add, so let me know in the comments, and I'll see if I can add it. I'm also looking for more objects to add into the game to be tripped over, so suggest some as well.