I powdercoated mine, its a uv resistan poly powdercoating, very strong stuff you would have to hit it with the hammer to brake it.
I have them done for over a year now Mirror Black and they shine still like new.
It was $80 per wheel. I did all 5
Here is one of my picks on the pathfinder. i used Rastolium applianceblack paint. it matched the podewrcoat exact. you can get it in loews/home depot.
only thing thats same is the chrome Nissan sign.
Here is the Spare wheel pic:
