For long lasting glossy shine on silver I've tried top notch boutique waxes, CG sealants and most Meguiars waxes. Best results for me have been obtained with the Zaino system. As mentioned preparation is key, clay and polish the surface to get if defect free, then follow the Zaino steps
ZAIO -...
I currently own a 6 series so am perhaps biased but I definately prefer the looks of the new car. It's altogther more coherent. I understand the views on it looking less aggressive, the angular lines that caused exactly the same comments when the current car was launched do make it look a little...