MOTOR VEHICLE CONTROL

A vehicle () having: a chassis portion () and a tilting suspension arrangement () such that the chassis portion can tilt relative to ground; a tilt control arrangement () including at least a tilt controller and a tilt motor () to selectively apply a torque between the chassis portion () and at least one member () of the tilting suspension arrangement (). The tilt controller has an active, tilt-controlled first mode () which adjusts a tilt angle (a) of the chassis towards an unstable equilibrium position using the tilt motor (). The tilt controller has a primarily passive, free-tilt second mode () in which the tilt angle of the chassis is not adjusted for at least fifty percent of time. The tilt controller selectively permits a transition between the first mode and the second mode in dependence on at least one operating parameter of the vehicle.