What used Audi A6 estate will I get for my budget?
How much does it cost to run a Audi A6 estate?
The diesel models are by far the most efficient - the 2.0 TDI has an official average of 46.0mpg, the 2.7 TDI manages 39.8mpg and the 3.0 V6 TDI 34.9mpg.
The 2.0 petrol returns a reasonable 34.5mpg, while the 2.4 V6 and 3.2 V6 FSI return an average 28.2mpg. Pick a larger-capacity petrol and you'll struggle to see 25mpg, though.