REMOTE central locking is now standard across the range. The door locking system enables the side doors and liftgate/trunk lid to be locked simultaneously. The standard engine immobiliser will disable the fuel and ignition system if a thief attempts to use any key other than a Mazda key. The use of a challenge-and-response system makes it extremely difficult to steal the car using a duplicate key. A steering shaft declutching device prevents the steering lock from breaking if a thief applies significant torque to the steering wheel.