That Pyreness black for the RVR has two different colours available. There is a darker colour and a lighter colour, they are mixed differently and some shops only have one colour on their system. I got them to mix up 100ml of lighter black and it was the right match for me, but check first. The guys at my local shop didn't have cards made up with the colour printed on them already so you could check, they made it up for me.
For the door trims and any plastics fading I use armor-all and it brings them up a treat, apply a few times every once in a while :thumbsup: