I have a Continental ContiproContact SSR 225/45R17 91H tire for sale. This is the standard issue 17 RFT for non sport package BMW e90s (also some e92/3s). It came off of my 2011 328i. It's at 6/32" and has never been damaged/repaired. Its the BMW OE star edition (fancy!).
I'm asking $100 (new they are $216). Tire is in Ann Arbor. PM me if interested. Thought I'd offer it up in the board before CL, etc...
See FS thread for pics:
http://www.e90post.com/forums/showthread.php?t=1089953