The present invention relates to a chassis for vehicle, comprising: a rigid frame, a pair of side wheels in a parallel configuration, a steerable front wheel, a steerable rear wheel, at least one electric motor, wherein at least one of said front wheel or rear wheel is connected to and driven by the at least one electric motor, and wherein said front and rear wheels are mutually connected through a turning mechanism arranged to turn said front and rear wheels simultaneously and synchronously between a middle position in which the axles of the front and rear wheels are substantially parallel with the axles of side wheels, and left or right positions, in which the axles of the front and rear wheels are substantially perpendicular to the axles of the side wheels.
