Quote Originally Posted by SeverAMV View Post
in 4ws, rear wheels only go in opposite direction to front at less than 35km/h. if you're going any faster, rear wheels go in same direction as front (if they went in opposite direction, you would exceed your car's stability limit and roll).
Its also dependent on how much you steer, at above the speed threshold, steer beyond a certain angle and the rear wheel go back to steering in the opposite direction. its quite an intelligent system really.