To park a vehicle by a small parking labor even if a parking space is narrow for the vehicle having at least two steering wheels and at least two driving wheels which are driven independently to each other.
A vehicle 1 has at least two driving wheels 11 which are driven independently to each other in order to ease a parking process to a parking space 3 for tandem parking. As a driving mechanism, for example, hub motors 13 are used. Here, the driving wheels 11 are two opposite wheels, that is, the wheels which are attached to both sides of a shaft. When the driving wheels 11 run in curves, one driving wheel 11 runs in an inner curve and the other driving wheel 11 runs in an outer curve. In order to ease the curve running and the steering running of the vehicle 1, the vehicle 1 has further at least two steering wheels. In this embodiment, the steering wheels are the ones attached to a steering shaft 15. By varying the direction of the steerable wheel 17 properly by the steering shaft 15, the wheels are moved, and the steering process or the rotating running of the vehicle is started.