STAY AWAY from Polished aluminum, unless they are clearcoated. They take LOTS of time and elbow grease to stay looking that nice. The first time winter salt hits them, you will be sorry. I learned this the hard way last year. I ended up buying soem bullits to get thru the winter, then I spent over an hour with a powerball, small buffing wheel on my drill and lots of polishing cream and rags to get my wheels back to 90% of what they once were.