We love our A6. I purchased it used back in 2002 and still own it 10 years later. We have only had minor problems with it such as the tiptronic system not working (easy computer chip fix), replaced the water pump and had a smoke causing oil leak fixed. The Quattro AWD system cuts through the snow-packed New Hampshire and Maine roads like a knife through butter. We also have a Mercedes E320 4MATIC and by far, the Audi Quattro AWD system leaves the Mercedes buried (literally). We also found the front and rear seats more comfortable than MB, BMW. While the Quattro system does take from the acceleration a little bit, the car does respond quickly with a "press back in the seat" feel at high speed
Quattro AWD, Bose-Audi Concert stereo, Front and Rear heated seats, heated steering wheel, ski/snowboard sack, red gauges at night, burled wood dash trim, quality of leather for a car that is now 13 years old, trunk space, fuel economy is around 30/mpg (when Premium is used), a/c that could freeze a meat locker.
faster acceleration from stops, better quality plastics inside cabin i.e. cup holders (broken), improve the aerodynamics of the sunroof to rid it of that "thudding" air noise when opened.
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