A while back I noticed this gap on my car, just above the nearside rear light cluster. At first I wasn't too bothered, but then I thought about it, and am a little concerned about rain running down the boot rain gutter and into the light cluster. Can anyone name the part, or provide me a number so I can try get hold of one?! I'm guessing it's just a small bit of plastic that's missing. I have checked the other side where all looks fine, although I don't have a picture of it sorry. Thanks!