if you're willing to sacrifice some of the deep color that a wax adds....collinite is seen as a very durable wax. I use 476s, "super doublecoat auto wax". It lasts the longest among the waxes I've tried. I do doubt that it lasts as long as it's advertised "full year". Here's a page with more info.
http://www.colliniteautomotive.com/p....htm#super476s
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