Abstract: A vehicle for use on inclined ground includes a means for moving the center of gravity of a vehicle body, such as a deck, which is supported on a chassis frame. The means moves the vehicle body in the widthwise or lateral direction of the vehicle through a guide which extends laterally of the vehicle and has a curvature whose center is located at a point under the surface of the ground at which the perpendicular line which passes through the center of gravity of the vehicle body intersects the center line which passes through the center point between the right and left wheels or crawlers of the vehicle and which intersects the surface of the ground at right angles when the vehicle is in an inclined state.