I have been using Liquid Glass Polish for 35 years. A fantastic product as are the other Liquid Glass offerings. I just put coat 6 on my 2015 Challenger today. The best example I have of what LG can do is the 2001 Ram I just traded in on my 2015 Ram. It had over 75 coats of LG on it and looked like a show truck after 14 years and over 100K miles. Check out the photo of the truck finish just before I traded it. It will take me a while to get to that point on the Challenger but I am working on it. If anyone is interested, I can post my recommendations on how to use LG products.