X6m carbon black.. What colour wheels?

[roentgen72]

Looking for opinions. Just bought winter wheels for coming snow season and they are a gunmetal type finish type 298M. I really like the look especially with the car at night when my car looks black. With all the brake dust my OEM rims are starting to look the same.

Any and all thoughts on whether gunmetal or matte black or even standard silver would be better looking on this carbon black exterior? ANy pics would be appreciated. I will post a pic of my car tomorrow.