A rear wheel drive force difference setting gain is multiplied by a basic left-right rear wheel drive force difference steady-state control computation value for achieving a vehicle turning behavior steadily requested by a driver in order to calculate a final left-right rear wheel drive force difference steady-state control amount. The final left-right rear wheel drive force difference steady-state control amount is added to a left-right rear wheel drive force difference transient control amount to obtain left-right rear wheel rear wheel drive force difference. This difference is multiplied by feedback control coefficient to obtain a final rear wheel drive force difference. During an initial stage of turning in which a lateral acceleration is smaller than a turn initial stage determining value, the rear wheel drive force difference setting gain is set to A, which is larger than 1 and increases as the lateral acceleration decreases. As a result, the final rear wheel drive force difference is increased during the initial stage of turning and an initial turning response can be improved.