Horns for motor cars; Directional signals for vehicles; Safety belts for vehicle seats; Land vehicles and structural parts therefor; Steering units for land vehicles and parts thereof; Air bags; Steering wheels for vehicles; Vehicle parts, namely, steering wheels; Steering wheel attachment comprised of an electric motor and drive gear and a ring gear that when activated by an external controller, turns the steering wheel to effect automatic vehicle steering in straight or curved paths; Vehicl...