Today my brother, a neighbor and I did our three vehicles. 2002 Denali XL (huge) my brother's A6 4.2 Quattro and my 03 Cobra. Claybar'd the 1st 2 and Z2'd all. The Denali's Deep Forest Green metallic really popped. My neighbor said it looked better than when he picked it up from the dealership. My Brother A6 is a metalic taupe, more brown than my mineral gray and it had a really deep luster. I converted my brother to Zymol 3yrs. ago. Now i think he and my neighbor will be ordering Zaino. Does anyone know how Zaino does on fiberglass? My neighbor is thinking about doing his boat. :beer: