When playing bumper cars, how to control the direction

Bumper cars due to its playability and safety in the playground and excitement rolled into one and is recognized as the "king of play equipment," some visitors to see other people play bumper cars play technology well, rushing collision other tourists driving bumper car can rush yourself up but can not play, only to be hit by someone else's sake, it should be how to play bumper cars can be handy to control it?
In fact, the operation is very simple bumper car playgrounds equipment, also a bit more difficult.
Whether battery bumper car bumper cars, bumper cars or ground network Skynet bumper car compartment inside is only a throttle, a brake and a steering wheel, no reverse gear, so many tourists do not know how to operate it. When the steering wheel to play bumper cars and killed, and then in the opposite direction has been playing you can let the car backwards. Bumper cars is because the direction is not always well controlled car hit to hit so called bumper cars.