Give the paint a nice claying, and carnuba wax. Next, use some Meguair's All Metal Restorer on the grille, window trim, bumpers, and badging. It does wonders as long as the chrome isn't completely oxidized. Then, use some Mothers Vinyl and Rubber cleaner on the seats, door panels, and dash. I found it works best if you spray it on and let it sit on the vinyl for a bit, and then wipe it off. You'll be surprised at how good it makes old MB Tex upholstry look.