Coin tray fitted as standard on all S2. Fuel computer fitted as optional extra. Manual wing mirrors fitted as standard on all S2, these were colour coded.
Heated electric operated mirrors fitted as optional extra, These were unpainted. Obviously optional equipment changed to standard equipment as the years passed.
For extra info early S2 came with XR3i seats as standard as Recaro seats were only fitted as an optional extra.
I see you are new to the forum/ownership. You'd best of getting info on your car by joining up to the RSOC.
http://bbs.rsownersclub.co.uk/forum.php