I just recently clay barred my car with Mother's Clay Bar and then waxed it with P21S carnuba wax. Oh man my car is slick and shiny. It rained yesterday. It beaded off teh car no doubt and today this morning, there were absolutely no water marks at all. The car is still slick and shine. Highly recommended.

Oh yeah I also put two coats of wax so that's a factor.

Applying the wax on is so easy. You can basically apply it on and wipe it off with a microfiber towel. No streaks and dust left. Love this stuff.