I thought I would finally add my X1 into the mix. Sorry for the horrid pictures, an iPhone with a poorly lit garage is the best I can do after moving across country. It is a 28 sDrive M-Sport with all the badges, not roundels, taken off.
Satin Black Powdercoat wheels
Black M Performance Grills (not visible)
25% Tinting all windows (except windshield)
I haven't touched the Engine bay but I am absolutely itching to. I am afraid of warranty implications.