Well I have purchased a replacement A8, here are the extras I have found so far and there are lots. The dealer really had no idea what he had, otherwise it would have been priced for a lot more. Previous owner was a doctor, he part exchanged it at a Mercedes main dealer, which is where the dealer I got from bought it. Solar Sunroof Bose surround sound Audi phone in armrest, with sim card slot 4 zone climate control Analogue TV Electric boot open/close (not sure if this is extra) AC