@ A vehicle comprising a frame and caterpillar tracks for ground wheels mounted under said frame. According to the invention, the frame is provided at least adjacent to, or at, one end with at least one pushing device. The pushing device comprises a fixed portion secured to the frame so as to be pivotable in a vertical plane, and a downwardly extensible portion having a free end provided with a foot plate pivoted to it. After the foot plate has reached the ground the pushing device is capable of lifting the vehicle.