Made some more progress on the Shelby. Not sure I care for the white stripes on the seats. Car will be yellow with white stripes (maybe) and the blacked out wheels.
You may have to use some fine wet or dry sandpaper and then use something like Novus to polish, polish, polish. Good luck. I hope you find a better way to take care of this problem.
I agree with the above. You are a brave guy to tackle that. I think I would have made a beater diorama with it. Good luck. I will be watching to see how you make out.