I need new tires for my 2010 550 and it will be a good time to refurbish the wheels. The previous owner/dealer cheaply covered up curb rash and the current finish does not look like other style 172 wheels I've seen. Mine do not seem to be as metallic as other sport 550s I've seen running around. I have a good place locally that will refinish the wheels and I'm trying to decide on the color. They told me the stock color should be Reflex Silver, but they could do any color I want. I always liked the e39 M5 wheels and was thinking about getting mine refinished in Chrome Shadow. I think the darker wheel would look good with Carbon Black. Has anyone seen Chrome Shadow colored wheels on an e60? I found some pictures of gunmetal. Didn't look too bad, but they are not the same as Chrome Shadow.