In that case, do not polish the barrels, and keep the finish silver and consider powder coating the centers. The silver color wont show the dirt and grime as much as a dark color (although there is no escaping this during the winter) and if powder coated, will be able to take the abuse.By the way. This is for my sterling grey metallic 530. Not my carbon black m5. Posted in here to get my m5 friends opinions. And yeah I might just refinish them stock. I was showing painted options because like I said this IS my winter rim set. They will get destroyed.