Wow, it's almost a dead heat according to the poll with 17 for the silver and 15 for the grey... When I initially bought the car last week, I was virtually certain that I was going change the current silver wheels and go with either black or grey, however the more I think about it the less sure I am. The silver wheels are growing on me, and I may just save the expense and keep them as is, at least for the time being. I'm attaching pics of my current wheels and a photoshoppped grey version kindly provided my maxnine11.
It's a bit of an unfair comparison since I suspect that the grey (or black) wheels would look nicer in person, than they do in photoshopped pictures.