To provide a four-wheel vehicle for traveling on an irregular road superior in weight balance and traveling stability. A center line (L3) of a rotational axis of a torque converter and a longitudinal center line (L2) of a drive shaft or a propeller shaft, which transmits a driving force from a transmission mechanism M to front or rear wheels, are distributed right and left in an opposed relation to each other with respect to a longitudinal center line (L1) of a vehicle body.