This is more of an fyi thread, but still, any comments are welcome.
Have recently listened to B&O in both Sportback and Saloon back to back and have to say the Saloon sound has much more integrity.
Subwoofer location in the trunk of a SB does not do it any favors. You get much more unwanted vibration in SB. Coming from a standard audio system you would surely be blown away by SB B&O but in a direct closed vs open interior B&O setup comparison Saloon wins hands down.
If I was to order my A3 again I'd wait for the Saloon for the B&O reason alone. Not to mention the looks. Yes, I hear this practicality argument coming up, but if the A3 is a second car and there is a load lugger parked in your garage already, then its a no-brainer.