I bought a complete set of OEM wheels with tires from another member of this forum...
http://www.1addicts.com/forums/showthread.php?t=17626
I really only needed the wheels (+TPMS & cap) so that I could mount winter tires on them and have a complete set of winter wheels/tires for my 135i.
Which means that I now have a full set of OEM Pirelli Runflat performace tires, from a 2009 128i w/sport pkg, that I'm never going to use. I never drove on them at all myself, and according to the original owner he only put about 250 miles on them before taking them off and selling them to me. (they look basically brand new to me) I looked it up on Tirerack and brand new these tires cost ~$200 each, so rather then letting them just sit and rot in my garage I figure I'd try to sell them to another 1 owner who might have a use for them.
Anyway if anyone is interested in buying these tires just make me a reasonable offer and they're yours. (keep in mind that shipping is probably going to cost $50-$90 depending on where they're going)
Dan
P.S. If you need pictures or specific specs I can get them for you. However I never drove on them at all myself, so the tires look idendical to the photo in the thread I linked to. (just the tires without the rims, etc...)