These look exactly like our stock wheels. I wish I had waited now...
http://www.apexraceparts.com/APEX-EC-7_ep_45.html
BMW Model Support: M3, M Coupe, 1M, E9X, E46, E36, E30, Z & 1
APEX is proud to introduce its new EC-7 wheel. This new wheel addresses the concerns of more and more racers and track day enthusiasts: long term durability, fit and performance. With the increase of faster and heavier cars being used in racing, HPDEs, and spirited driving, the EC-7 was designed and engineered to handle extreme abuse on track and street, offer a wide range of direct fitments, while producing a lightweight wheel. The new features offered make the EC-7 the perfect compliment to the APEX ARC-8.
View the galleries, get more information and join the pre-order.
Save up to $200.00 per set.
Pre-order ends 7/26/12
P.S. I don't have any affiliation with APEX but I've had excellent luck racing on their wheels.