Just spoken to the dealer, He's not sure on either the headrests or the sport and sound pack.
Said he'd expect the seats to have the GTD logo based on the description and image, and with the sport and sound pack as far as he was aware the calipers would not be red, and it was just the speaker feeding in audio from the exhasust rather than a straight through exhaust.
He's going to speak to the new car lsales manager and call me back on wednesday, so hopefully he'll be able to tell me for sure then.