I have not heard of this and I don't see it on the website as on option. It might translate into Brushed Aluminum here in the US. If so, check out this thread:
http://www.xbimmers.com/forums/showt...ushed+aluminum Pictures aren't great quality but you will get the idea.
Here is a picture from the BMW website:
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Scott - 2012 BMW X6 50i Twin Turbo / Porsche 996 Twin Turbo
Black Sapphire Metallic with Saddle Brown Nevada Leather, Comfort Access keyless entry, Running boards, Rear-View Camera, Dark Bamboo wood trim, HUD, HD Radio, Satellite Radio, Cold Weather Package, Premium Package, Premium Sound Package, Rear Climate Package, Sport Package, Euro Black Kidney Grill, Euro Side Markers, Black Double Spoke 215 Wheels...