The car responds to the WASD controls, but I won't say that they're specifically controlling the vehicle: it's more of a very vague suggestion as to the direction, because the car is constantly being thrown every which way regardless. Even when the game first starts, if no keys are pressed, the car sometimes just bounces and glitches so hard by default that it ends up somewhere else nearby. If it really is the 30 fps problem, then that would help - it seems to be more of a physics problem then a steering one, but it's kind of hard to tell when you have so little control.