I test drove an '06 Premium yesterday, black on black, with only 5K miles. The guy selling it is actually an independent dealer, he's had it for the last 2 months and put the last 1K miles on it. Anyway, he pulled up the carpet in the trunk, and the sheetmetal was actually painted a greenish color, looked mork like overspray. Is this what color they all are in that area? Is that some kind of metal treatment that's on the sheetmetal at places that don't receive paint? I couldn't tell anywhere else that it had been repainted or anything.