Drifting through old forum notes. I have a 2005 S4 I traded into from a 2002 A4 (July 2005). I don't understand the complaints on mileage. Yes, I expected a lot less but I'm not getting "A Lot Less". The S4 isn't broken in yet, however I'm getting 18-19 mpg in town and so far up to 28 highway. That is in Tiptronic or manual. Upgraded the air intake to the Stratosphere last week -- even better mileage and I still drive 75 in 65 zones and challenge Porsches whenever I can.