I think Audi (and also BMW) need to be pulled up on their quoted fuel consumption figures - they are simply not telling the truth !!
I was annoyed to find my colleagues 3.0tdi GT5 BMW, gets away with a ?175 tax bill, the same as my 2.0tdi S-tronic - when in reality, he can only muster 30-31mpg out of the thing, rather than the 42mpg BMW quote.
Imagine my surprise to find that my car is still only showing 33.2mpg (over 950 miles), when again that is quoted as being 42mpg average ! Going from what Aaran has said above, 35mpg may well be the best the overall average is likely to show ?
They must run the cars around a perfectly flat track, behind a huge lorry to act as a wind break, when they obtain their quoted figures !!!!
I mainly went for the 2.0 over the 3.0 based on the fuel consumption and would really have preferred the extra oomph.
Oddly, I have found that driving the car in Sport mode gives a slightly better consumption than when in Drive and the car feels much more free flowing - perhaps Drive should be reserved for motorways only?