The clay bar is awesome! I learned about it from they guy down the street from me. He collects cars. He has like 3 or 4 Mercedes. One is a limited edition, only like 500 were made. He has an S2000, PT Cruiser, and a Prowler. The Prowler is a show car and he's got custom paint and all sorts of goodies for it. He uses the clay bar on all of them with the mother's wax. When he showed me, I felt his cars, then I felt my just washed celica. The celica's paint felt rough! Its hard to explain, but I am definately going to get the clay bar and before spring comes I'll have my car silky smooth.