 My second A6.  Mix of great things and some annoyances.  Biggest issue is steering wheel which doesn't align straight when car is going straight.  Not fixable because of the design and quite irritating when driving.  Lower driver's seat cushion doesn't move much so for some average size folks not a comfortable position.  Also the impeccable interior design of the last generation A6 design drops with absence of single CD capability, usable second cup holder and airbag and door lock lights that are very bright. Goodies two: Navigation is very easy.  Automatic electronic key is far nicer than you would guess.  Great trunk with quality folding seats.