I got a bottle of this stuff for my 2008 mazda 3 black mica. Holy **** is this a pain in the butt to wipe off. I followed the instructions and wiped with a terry cloth immediately after applying, and I got to say it just would not come off. Got half of my car done in about 3 hours, sore as hell arms and legs. I do not notice any difference in the half that was done and the half that was not. Whats up with that?