These were made for E90/E92 non-M, I know there's a GB going for the M-fitment, but I'm almost 99% sue you wont get them for awhile!
19x8.5 (35mm)
19x9.5 (28mm)
Not 100% sure on the offsets
Why wait when you can get them now!
See link below for details.
http://www.e90post.com/forums/showthread.php?t=191867
PM me offers.
Thanks