[svxistentialist]

Seth is right, the fuel lid is metal. That is also a good reason to give it to the paint mixer guys, properly buffed as Gerry says. It's easy to remove and you've a better chance of getting the match perfect.

Boi, the undercoat sprayed in the trunk and engine areas is always different than the finished coat. It's generally done with a primer that has the middle color coat in it, but has a satin or dull finish to it. Car painters are aware of this, and a good one will just mix up the correct primer for you if you need these areas covered.

I have seen people do up complete car restorations from the metal. Because the shell is completely stripped they give the whole car the final color, just because they can, and they want to do a good job. When refitted and rebuilt the car looks false and overdone because the engine area in particular looks "too clean". If you want it to look like ex factory, best to stick to how it was originally sprayed.

Joe