Zaino works! I used Zaino on my Chevy Avalanche and it works great! Use it on windows, wheels, chrome, paint, everything! Just put it on my new 335xi and will continue at least once every 4 or 5 months or so. The break dust just wipes off. The polymer just continues making the surface slicker and slicker. Never use WAXES! I took it by the dealer to get my permanent tags and the sales guys just marveled at how the car looked, better than the new ones on the lot!