That is actually a killer deal, $400 for OEM wheels....and tires to go with them!I was browsing BenzWorld and found an incredible deal on these 17" AMG package C-Class wheels, in California...you should snatch these up, and polish or paint portions of the wheels for the look you want.
FS : 4 AMG C350 rims & tires. - Benzworld.org - Mercedes-Benz Discussion Forum
You cannot beat that set for $400...
claNOW and Benzfan, that C set-up looks great and definitely a bargain, however, I want to go narrower than wider. The staggered set-up may be too wide for the rear, especially since the car is only +/- 3250 lbs and front weight biased.
You all talked me out of the OZ (pseudo-MINI) wheels. How about theses two other options:
DAI Replica R27: DAI Replica R27
Sport Edition A8: http://www.tirerack.com/wheels/Whee...n&wheelModel=A8&wheelFinish=Titanium+Gunmetal
Both are 17" and have roughly the same OEM off-set (ET) as the E1 18 inchers.
Another option would be to use the existing wheels with 215 40 18 snows until a good 18" alternative surfaces. However, that would risk potential damage to the OEM wheels.