I put 18 coats on my '13 Shelby GT500. I noticed that the metallic in the paint didnt seem to pop as much. A couple weeks ago I machine polished everything off the paint and put a coat of Collinite 915 followed by 2 coats of 3m Perfect-it Showcar wax. It now looks like it is glowing in the sun. I went to a cruise-in and someone told me it looked "spectacular". It looks the best it ever has since new.Please comment your experience with Liquid Glass. In another post, last week I saw a pic of a white GT with excellent reflexion after been polished with this product....