I have a 2001 Pontiac. I did a wash and wax this weekend and noticed some spots on the spoiler. (It's plastic, OEM part.) They are only on the spoiler. It's almost like something was on the paint and dried, could be water spots I guess. I can not feel them. I have no idea what they are from, the car sits out 24/7. I tried to take a picture of them ,but they did not show up too well. I am not sure how to post a pic anyway. I tried a cleaner wax on a few. Any other suggestions how to remove them?