I have seen silver cars with black wheels and I think its a great combo. Never seen a silver X with black but I can imagine it would come out nice. Personally, I am a fan of the black wheel look, some aren't. Whatever color you choose to do you can't go wrong. X looks nice and clean and those 19s will look nice in any finish. I say go for the black or a gun metal finish. It will make your X stand out from the rest, IMO

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[SIGPIC][/SIGPIC]
06' E53 Dinan X5 4.8is
01' S54 M coupe
-Elliot