A steering mechanism where the steering wheel and command console located behind it are mounted on a generally vertical support which can be pivoted about a stationary base on the floor of the vehicle in order to accommodate two side by side driving positions. A separate linkage between the command console and the stationary base keeps the latter at a constant angular position as the steering wheel is shifted between the two driving positions. A choice of gear-and-chain combination or flexible torsion-transmitting rods are disclosed for coupling the steering wheel to the vehicle steering mechanism and for keeping the command console at a constant angular position.