There are provided left and right arm mechanisms that connect an arm attachment portion as a part of a vehicle body to vehicle wheel attachment portions attached with front wheels via a front arm and a rear arm disposed in a front-rear direction of a vehicle and having plural links; and servo motors that independently drive the left and right arm mechanisms so that each link angle corresponding to a turning angle is determined. The setting position of the imaginary kingpin axis may be changed. Each link angle changes within a range of maintaining a correlation in which the turning angle increases in accordance with an increase in the steering operation amount when controlling the servo motors so as to obtain the turning angle corresponding to the steering operation amount of a steering wheel.