Four-Wheel
Drive
Four-wheel
drive (4WD) is a type of vehicle drive system in which power
is supplied to all wheels equally. Four-wheel drive ensures
minimal wheels slip and is highly effective for off-road and
winter driving. It is commonly used on trucks and sport utility
vehicles. Often when a four-wheel drive system is fitted into
a car it is refered to as all-wheel-drive (AWD).
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