The invention provides a controller for a vehicle in which at least both high grip performance and low fuel consumption or both silence and low fuel consumption can be satisfied. When the camber angle of a wheel (2) is regulated to negative camber, the ground contact pressure of a first tread (21) is increased and the ground contact pressure of a second tread (22) is decreased. Consequently, high grip performance or silence is exhibited. When the camber angle of the wheel (2) is regulated to positive camber, the ground contact pressure of the first tread (21) is decreased and the ground contact pressure of the second tread (22) is increased. Consequently, rolling resistance decreases and fuel consumption saving is achieved. Contradicting performances, high grip performance or silence and fuel consumption saving, can be made compatible by regulating the camber angle of the wheel (2).