Originally Posted by dalparadise

I won't dispute your suggestions, but will weigh in for Zaino. It is truly excellent and long lasting. Probably the best professional-quality results I've ever gotten doing it myself.

Most pros don't like it because of the "cure time" required. Most non-BMW people don't like it because so many BMW people swear by it. I'll admit it's a little expensive (especially the "accelerator" drops) but holy crap -- a couple of coats and my finish is so reflective, it looks like my car has some kind of cloaking device on it.