I bought a genuine Ford one today from my local dealer and was suprised at the finish. It looks like its made of fibre glass and white on the inside and looks like its been blown over in mat black spray paint on the outside.
Is this right? I never really thought about it but persumed they where plastic/rubber

Do they need prep/painting before fitting?
I'm thinking I'd might aswell had bought the Fibre Glass copies for a lot cheaper