Tony, you need to change your dealer if they pull stunts like that - their comments about real Audis is not on either.
Richard, why not show an interest in buying another car and see if they have a courtesy vehicle that they can give you for the day which will double as a test drive. That way, you could land up with anything really.
I've had A3s. A4s (mostly) A6s and even a couple of TTs.
Cheers,
Mike