Thnanks for the comments guys. Can't stress enough the pictures do not do the car justice, especially the interior shots. Will try and get some better shots however I'm officially the worlds worst photographer
Drove the car this evening for the first time in a few weeks and it feels better / tighter than when I bought it. I've honestly no idea at the moment what would replace the car if it sells.
The boot floor has been regularly checked with nothing showing up in the past. I've just left the car with Bavarian BMW to have the Centre Cats replaced pre-sale and have asked for the boot floor to be checked again. Written confirmation from BMW will come with the car if it's sold.