Difference Between 4-Wheel Drive & All Wheel Drive
by Richard RoweThough similar in principle, the intent of All-Wheel Drive (AWD) and Four-Wheel Drive (4WD) vehicles are very different. One is used for enhancing traction in all situations, while the other is intended specifically for off-road performance.
History
The first four-wheel systems were used on electric cars in the late 1800s, and AWD was first used by Audi in the late 1970s for rally racing.
4WD Purpose
Difference
4WD Advantages
AWD Advantages
References
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Photo Credits
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