Wash and Shine, Wash and Wax, Wash and Gloss, car shampoos these days are marketed not only to clean your vehicle but also to enhance the gloss or add some form of protection to the paint. However, do they really do that? Do Wash & Wax shampoos actually add something to the finish and negate the need to wax a car?Or are they pure marketing BS? I attempt to find out to these questions by comparing several Wash & Wax and non-Wash & Wax shampoos. I also review Meguiar’s new Ultimate Wash & Wax.