I had black wheels on my 350 for a while- I added a vinyl stripe (first red, then silver) to differentiate the wheel from the tire. It's kinda weird- a lot of the times going to a black rim will make the car seem like it has one size smaller wheel because the lip gets lost near the tire. 19s will look like 18s, 18s like 17s, etc.
just an example so you can see what im talking about- i think the stripe really helps make the black wheels "pop".
