1) Jeep feature 2) Off-road vehicle feature 3) Subaru cpu 
Four-wheel drive, all-wheel drive, AWD, 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. ==Definitions== ===4×4=== Four-by-four (4×4) refers to the general class of vehicles. The first figure is normally the total wheels (more precisely, axle ends, which ma.....
Also, 4WD. A vehicle that's all four wheels are driven by the drive train. Superior traction to 2WD counterparts.
[n] - a motor vehicle with a four-wheel drive transmission system 2. [n] - a transmission that provides power directly to all four wheels of a motor vehicle
4WD noun a transmission that provides power directly to all four wheels of a motor vehicle
a drive system in which engine power is transmitted to all four wheels for improved traction. · a vehicle having such a system. Abbr.: 4WD