WAirbag
WAxle
WBoyce MotoMeter
WBrodie knob
WCar controls
WCheck engine light
WDrive shaft
WDumb iron
WFuel line
WGear stick
WGrouser
WIgnition switch
WJohnson bar (vehicle)
WJump seat
WLug nut
WMaster cylinder
WMuffler
WOdometer
WOil filter
WRadiator
WRear-view mirror
WSafety reflector
WSchrader valve
WSeat belt
WSkid plate
WSpeedometer
WStarter (engine)
WStarter solenoid
WTachometer
WTell-tale (automotive)
WTrailer skirt
WTrailer tail
WVehicle frame
WVehicle horn
WViscous coupling unit
WWheel hub assembly
WWindscreen wiper
WWindshield