MSW Wheels - What car?

My brother gave me a set of MSW 17" wheels to put on eBay. I don't know anything about them, and he doesn't know much about Bimmers, so I've come to you guys. I'd like to know what cars these will fit and what car they would have come off of. One eBayer asked me if they came off of a 3, 5 or 7 Series.

Auction: http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=8046638913

Someone else just asked me what the offset is, too.