Keeping the exterior black plastic as 'new' or better?

[neilians]

I use Aerospace 303, cleans, restores & gives UV protection.
Restores the factory colour & finish, seems to last a few washes.

[Darthbladerni]

I use wet and black on mine.

Before i actually started driving the car is wasnt washed very often so the black plastic at the back of the car and areas where dirt and water would hit more were a bit lighter than the rest.

i used wet and black about 1/2 times a week to build it up and now I can leave it for near 2 weeks before the really black look fades so i do it again. Works a treat.

The only downside is that it doesn't work on tyres as well as it should but that is what son of a gun is for

[caesar]

My R56 MCS has a black plastic grill on the front , and there's another at the rear below the tailgate. The one at the front is self-cleaning if it's raining

The rear one gets filthy and is difficult to clean. I wonder if there are any after market carbon fibre grills for the MCS