Flexible luggage compartment liner
A couple of you have asked about my boot liner after seeing it on the EM Tuning light upgrade thread.
The one I have is specific to the 2wd sportback.
Its listed on Audi's site here
Audi Accessories < Owners area < Audi UK
It costs £34.00 I bought mine from Leeds Audi as my mate works there and was an excuse to pop and see him. They had to order it in, but it only took a day or so.