I have a good little noice that has bothered me for a few weeks. I started hearing it when I was in a drive through or next to a building. A rattle when I was moving. I looked all around checked the pipes and the Cat converter, checked the underbody couldn't find anything. My neighbor stopped me and told me it sounded like it was coming from the tires. I just happened to have my oil changed at the dealer that night and had them look at the noise. They found that it is the shiney chrome plastic cover that goes over the alloy wheels to give them a mirror finish. They had losened from the actual wheel and make a noice when rolling. Anyone else heard of this? The dealer said no TSB's have been issued, and at first had to see if they were covered in the warranty. At the end the covers will be covered, and are on order.