closing systems consisting of locks and latches comprised of metal and non-metal parts; electric motors; actuators to bolt the locks; control units to open and close the locks, activate the horn and to deactivate the ignition system; sensors to detect unauthorized entry and broken window glass; senders to transmit infra-red signals to the control unit to open and close the lock; and transponders and metal keys for locks, all sold together as a unit for use in the manufacture of road vehicles, aircraft and watercraft