This appears to be Satin Chrome Finish.
Looks like the 18's will be alright after all. The design is actually nice and SOOOO much better in the non hyper-black finish. Should be a better ride as well.
Perhaps they will be more like this color from the BMWUSA site.
Plus, makes the purchase of aftermarket rims all the better, should be good winter rims, if needed. Save $1,400.