Well, Audi don't actually provide a stamp on it for towing, so it wouldn't work, I'm sure you could but as Mike says. I managed 24.4mpg over 330 miles. Some A roads from Holyhead down through Wales and around Shrewsbury then down the M5 and last Cirencester along the 417 to the M4, M25 and home. Cruising at 65-70 it nearly gets to 30!!!! But then some young wipper snapper comes up behind you in an Astra VXR and flashes you out the way and when that happens the law states you have to educate them.
In all fairness it really goes but it's hard to describe, it doesn't Pin you to the seat but you nail it off the line, look down and you're doing 80, it's really sedate and comfy!!!