For sale is a set of OEM 21"BBS wheels off of a 2011 ALpina B7. wheels were all slightly bent and i had the wheels straigtened and powdercoated metallic silver. Front wheels are 8.5" X 21" rear wheels are 10"x21" bolt pattern is 5x120 i do not know the offset and i do not know what other cars they would fit. I dont have center caps for the wheels. You would have to go to the dealer to get them. i could not find them online.
http://newyork.craigslist.org/stn/pts/2631138785.html