I've got 19 inch AMG 5 spoke wheels on my car--2008 CL550 (cross posted on W221 forum also). I know these are considered a desirable option, but to me they are the least interesting of any of the factory wheels. There are very few (almost no) good condition other wheels I can find on Ebay or elsewhere, especially as a set. Does anyone know if I can expand my search to other MB OEM wheels, with some modifications such as spacers, without causing trouble? I've looked at the calculators online, but don't know enough about wheels to know what trouble other models might cause, even if they technically fit. BTW, I'd be interested in trading if anyone wants AMG wheels and has a good set of something else. I contacted the poster who just advertised CL600 wheels, so will be curious to see what he is offering.