<P> Four - wheel drive , also called 4 × 4 ( `` four by four '' ) or 4WD , refers a two - axled vehicle with a drivetrain capable of providing torque to all its wheels simultaneously . It may be full - time or on - demand , and is typically linked via a transfer case providing an additional output drive - shaft and , in many instances , additional gear ranges . </P>
what is the meaning of 4wd in cars
refers a two - axled vehicle with a drivetrain capable of providing torque to all its wheels simultaneously