So three weeks ago I bought a 2005 S4 cabriolet and one thing I noticed but didn't think I would be able to do much about was the cloudy/milky state of the alloy trim that adorns the car. So far I've only had chance to test a small area on the front A pillar and around the rear of the hood but so far it's looking far and away better than it was by using this - Plastic Polish DTD770A - Greygate . Once the weather is a little warmer to stand out in my garage I'll do a little larger area and take some photos to show the difference and try to post them up.