Nine-out-of-ten cars are hot-wired and driven away. Mechanical devices such as steering wheel bars and pedal locks are only a minor inconvenience for the professional. Although they may work as a deterrent, car alarms can be "hot wired" around. The professional thief simply cuts or jumps the alarm wires and he is gone. Tracking devices used by police to locate stolen cars do not STOP the vehicle from being hot-wired and driven away. They depend on early notification of authorities by the owner. A car that is taken at 2 a.m. can be dismantled miles away before the owner even realizes it is gone.