I have been given the above car as a courtesy car whilst my 2009 A4 2.0 TFSi is in with Audi whilst they conduct an oil compression test.
I have done 3000miles in the A6 and I am very suprised that it only manages 33mpg combined!
My A4 manages 42mpg combined!!!! Glad I did my research before buying mine and went with the TFSI.
I realise that the Auto with DSG aint the most economical and the A6 is a heavier car, but thats terrible mpg!