Scraped black plastic above wheel arch! Any fixes?

[omodos]

Oh man was backing out of the drive and my mind was on the bloody cats that foul the fron’t of the x5, and I managed to scrape an area near the turn light that I will have to touch up and also the matt black plastic that goes over the wheel arch…

Any ideas without having to totally replace the arch that I can remedy this ?if I sand it down it will get rid of the scratches, but the fact that the plastic is a matt rough surface will mean it won’t match the rest of the car fittings…