Four-wheel drive, 4WD, or 4×4 ("four by four") is a four-wheeled vehicle with a drivetrain that allows all four wheels to receive torque from the engine simultaneously. While many people associate the term with off-road vehicles and Sport utility vehicles, powering all four wheels provides better control than normal road cars on many surfaces, and is an important part in the sport of rallying.
In abbreviations such as 4×4, the first figure is normally taken as the total number of wheels and the second is normally taken as the number of powered wheels (the numbers are actually axle-ends to allow for more than one wheel on each end of an axle). 4×2 means a four-wheel vehicle in which engine power is transmitted to only two axle-ends: the front two in front-wheel drive or the rear two in rear-wheel drive.
BMW 4x4
BMW 4x4
BMW 4x4
BMW 4x4
BMW 4x4
BMW 4x4
BMW 4x4
BMW 4x4
BMW 4x4
BMW 4x4
BMW 4x4
BMW 4x4
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