I had an A6 S Line 3.0 auto Quattro. Sublime driving solo, Upto 42 mpg. Towed my Wyoming effortlessly and returned 24+ mpg.little low at the rear and used to cach the bottoms of the rear mudflaps occasionly. It replaced a 170 bhp a4 avant S Line manual which I must say was a fantastic bit of kit but i just couldn't get on with it. Im sure in auto it would of been better as i just couldn't get out of the habit of stalling it ! one thing i found, the dealers i used were dire. thats why i now have a bmw and hand on heart, it doesnt drive as well as an A6.... If only the salesmen at audi would speak to me i'd be driving that allroad instead......