I have used Zaino for years. I find it is best on darker colours. Make sure you get the ZFX activator it cuts down on the drying time 10 fold. Don't get any product on the plastic bumpers, wheels/ headlights,tailights are o.K. you can also apply it to the side and rear windows. It is a polymer (synthetic) so it does last longer than "wax". Prep is everything make sure you clean and prep the car before applying. Wash the car with Dawn dish soap to strip any surface wax. I always clay the vehicle before applying any wax the first time. The Zaino website has full instructions.

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2013 BMW X6M-current
2013 Audi S4-current
2007 BMW X5 4.8i (E70)-sold