I have always been a Meguires guy, but recently was talked into spending a few extra bucks on the Zaino products. I am impressed and will probably never go back.
http://home.columbus.rr.com/cdistl/carzaino.jpg
http://home.columbus.rr.com/cdistl/carzaino1.jpg
http://home.columbus.rr.com/cdistl/carzaino2.jpg
http://home.columbus.rr.com/cdistl/carzaino3.jpg
http://home.columbus.rr.com/cdistl/carzaino4.jpg
Those are of a 92 Eclipse "manufacturing date of Sept 91 and 154,125 on the odometer" and it never shined like that with Meguires. I did the clay bar then Z1, Z5, Z2, and another coat of Z2. I think it looks great for what it is.