Traded in my 2007 A4 for a 2007 certified A6 (needed extra room in the back seat). Very happy with the purchase. I do miss the "nimbleness" of the A4, but the A6 added a few extras that I didn't have before. There's enough room in the back for a baby seat - behind both driver and passenger and the trunk is enormous! Plenty of power when needed - just watch the fuel gauge. Driving conservatively around town, I get in the low 20's. On the highway - averaging around 70 - I get close to 30 mpg. Pretty good for a big heavy car. Plus, it can run well on regular - unlike the 2.0T A4. Although I do alternate with a tank full of Shell Premium V-Power just to keep the injectors clean.
Fast, quiet, responsive, well appointed, bells and whistles aside, I love going to work now. The mountain freeway I drive to and from work is fun now, for the first time in 25 years. It's taking me a little time getting used to the differences of driving from my old car, and 1995 Jeep, where my legs go down in from of me and the steering wheel isn't between my knees. The 2007 A6 is a race car. It hunkers down into turns asking me to push the gas peddle a little further down, as if it wants to go faster. The car has a quality that puts it in a class with any other more expensive car on the road. Consumer reports for the 2007 Audi A6 will be all good, I believe. I couldn’t be more impressed.
I agonized over this car for months Audi vs BMW vs Lexus vs Acura... I am defiinitely very happy. The V8 is quick off the line but is more appreciated when passing on the freeway. S line handling and paddle shifter are fun but not mandatory. New addition is the review camera - which becomes important in the city (bumpers not made for love taps). Interior comfort very similar to the A8. The car is awesome. The Nav is easier to use than BMW. Decent mpg for a V8. The brakes could be a more responsive. Apparently they didn't make too many of the V8 A6s - usually are ordered only - and so you wind up paying more for it (just 1k under MSRP) but is definitely worth it.
The Audi A6 3.2 Quattro S-Line virtually embodies my vision of what a luxury performance sedan should be. Quattro four-wheel-drive provides incredible control, handling, and steering through curves and around corners. S-Line suspension gives "on-rails" feeling. Averaging 22 mpg, while driving it "passionately." Stunning and comfortable interior, with full array of electronics: excellent bluetooth (Treo 700p worked from the start); navigation system (small additional display in front of driver allows larger screen to be freed from map-use), which has been dead-on accurate; wonderful climate system and heated seats bottoms and backs. I love looking at it.
The first thing that is great about the car is its elegant interior, I've owned BMWs and Lexus and MBZs and they all come in a distant second to the interior. The sure footedness of its all wheel drive makes it a fun car to drive, yet not stiff and rugged like it's german relatives. This vehicle is not the quickest off the line but the real world does not live in the 0-60 realm, it is in real driving situations where this car exceeds expectations. The MMI took a while to learn, but who needs it when you have the voice activated commands?