Abstract: A motion simulator (10) has a body tub (12) fixed on a carrier platform (14), the carrier platform being supported via motion control apparatus (52, 54, 56, 58), each having bearings which translate along an inclined path, the motion control apparatuses together providing six degrees of motion for the carrier platform.

Abstract: A motor land vehicle (10) includes a fire-guarded battery pack chamber (12) containing a battery system (22), the chamber having a relief port (34) with a bust disk (36), the chamber having a fire guard including a sheet of material comprising a first protective material which is ceramic and a second protective layer which is a carbon material.

Abstract: A vehicle suspension system has a gas-spring hydraulic strut for each of its four wheels. Each liquid actuator chamber of the struts at one end of the vehicle is connected to further chamber in the in the diagonally opposite strut, which further chamber acts in the opposite direction to the actuator chamber of that strut. A linear potentiometer within each strut provides a signal representative of the strut length to an on-board computer, which, when it detects a difference in the signal from any strut sensor from a predetermined value, causes a proportional servo-valve to admit hydraulic liquid from the actuator chamber of that strut at a flow rate proportional to the detected difference to return the strut length towards its predetermined value.