The Rolls-Royce of screens - and you pay a suitable price. What you get, though, is a comprehensive kit which is tailored to fit all your car's rear glass. They cut out the most light in our test, pipping even the Window Sox. The shade is clipped over the panel frames, so the windows can be used for ventilation while the blinds are in use. If money's no object, these are the best. But for many, that price will simply be too much.