My car is guards red. I really like the shine that Zymol gives. It leaves the car looking like glass. The only problem is that Zymol involves a bit more elbow grease than other waxes (ie. takes a long time).
When I don't feel like spending an entire day waxing the car with Zymol I'll use P21s. The shine is almost as deep, and it buffs out very easily.
Check out
http://www.carcareonline.com They've got great prices and reviews of just about every wax out there.
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Dan Tolley
1987 911 Coupe
http://www.cheaterswayside.com/911/gallery.asp?sort=0&userid=294