To stabilize a curved traveling, minimize the shock When a difference in level is climbed over, and stabilize the traveling by mutually differing each axle position of each front wheel along the longitudinal direction of a, body, and mutually differing each axle position of each rear wheel in the longitudinal direction of the body.

A pair of front wheels 2, 3 are provided on the front part 1a side of a body 1 in such a manner as to be turntable along an arrowed direction A by a handle. Each front wheel 2, 3 is rotatable by each axle 4, 5, and the axle position 4a, 5a of each axle 4, 5 is mutually differed along the longitudinal direction B of the car body 1. A pair of rear wheels 10, 11 are rotatable by each axle 12, 13, and the axle position 12a, 13a of each axle 12, 13 is mutually differed along the longitudinal direction B of the body 1. In a road having a protruding gutter, for example, since each front wheel 2, 3 and each rear wheel 10, 11 climb over the gutter with a time difference, the shocks are generated with a slight time difference, and reduced more when they are simultaneously generated.