Been thinking about plastidipping the gold, and some of the rust.
(http://farm9.staticflickr.com/8080/8386586273_7eae40fb6d_z.jpg)
(http://farm9.staticflickr.com/8473/8387677234_b16bc1f075_z.jpg)
Couldn't hurt. The gold look hasn't aged well IMO.
Plastidip the whole car, windows and all.