Check glass to make sure it's all original. While the car may have been broken in to, or the windshield may have been replaced, if you find one that's been replaced, or especially two in the same area, look a little closer Paint work can be very hard to find when done properly, feel around the edges of doors, trunk lid, hood, for roughness and check the jams for roughness from overspray. As was mentioned, it sounds funny, but I actually spotted a inventory sticker on a bumper mount on a truck a couple of weeks ago, damn lazy techs