Well I'm not one to boast about one product or another but this past Thrusday had some time off and decided to give the Zaino a try. I bought the Z2, Z5, and ZFX. Followed the directions two coats of Z5 & Z2 and members let me tell u I've never seen the Vette shine like that before. A little time consuming as u have to let it set for 30 mins per coat but the results are awesome. It is definitley worth a try. The majority of surface scratches are gone now I feel about the Vette the way I did back in 99 before all the trips to the dealer. Oh yeah also washed in Dawn, clay bar, and rewash with Zaino car wash prior to applyiong the waxes.