I just washed my 3L anthracite sport. I live in Rhode Island so road salt can be a problem. I poped open the hood and found a considerable build up of dried road salt on the underneath. Just a word of caution for anyone else who lives where road salt is common. I also tried Nu-Finish car polish on a small area using a wax applicator pad and a flannel polishing cloth. To my dismay I ended up with swirl marks. Other than having the car professionally done, does anyone know of a good product or method of waxing a black car without leaving swirl marks? Thanks, Ken