I would use my left foot for bass, and actually have two sticks in hand air drumming. I would steer with my right knee. Stupid? yes. Fun? not when cops are around. but the look on peoples face is pretty funny. Oh to be young and reckless.
I should also add that when I AM playing the wheel in the car, if I ever have a situation where I need to react to something on the road, or see a potential problem coming, I just let go of the stick and let it drop to the floor. It's not worth it. I just pull over and retrieve the stick at a later time.
I don't want anyone else to get hurt out there!!!