My 07 STS has the 18 inch polished wheels. These wheels have a very cloudy finish (almost a goldish tint) and do not shine very well. I realize these are polished wheels and not chrome, but a do think the finish should not be cloudy. I hand wash my vehicle once or twice a week so the brake dust does not build-up. I showed the wheels to my local dealer and they did not seem to think it was a problem. Has anyone else experienced this problem?