Thanks for the reply! I must comment on the ability of a clay bar or any other form of it to remove swirls...it doesn't do that, at least from my experience. A clay bar is not abrasive enough to cut the clearcoat to remove swirls. In fact, on heavily contaminated surfaces, swirls are actually filled-in with imbedded dirt, only to be revealed after the clay bar removes the embedded dirt. Oh, and a spritz of tire foam in the wheel wells after a wheel well cleaning is certainly a great tip!