For immediate availability, the SSR Type C (new version of Comp.) is good. They are all one width, no stagger possible for the E92 with that wheel. They used to have a wider rear, but no longer.
The TR Motorsport is the same weight, and can get wider rears (rears will be a little heavier. 18.5lb for 8.5" 19lb for 9", 20lb for 10". The MT-1 needs a spacer (included) for use on the E92.
SSR Type F will have 18x8.5 and 10". Weight not known yet, but should be light. Not available yet, but should be coming soon.
Hope that helps. I'm out for the weekend, but back on Tuesday.
I have accepted a new position at Tire Rack and am no longer in the sales department. firstname.lastname@example.org
is available to assist with M3 questions.