The thermal signature of a vehicle is reduced by providing a thermal shield (20) on at least one of the wheels (10) covering at least a greater part of the wheel area, in combination with a further shield (42,50) around or depending from the wheel arch (19...

A shield is in the form of a flat annular brush (7) with inner (9) and outer (10) edges and radial bristles (8) of a polymer material sufficiently stiff to remain straight. The outer disc has a screen (23) of a composition material with low emissions in th...