Honestly that bootlid surprise me. It's boring, not very carefully designed, not matching the lines of the A6. Quite strange. It looks more like the previous generations of Audis than the new one with the "new" rear displayed by A5, A4 and Q5.
Maybe Audi will start to differentiate the models a bit more and reserve this rear to the A4 and alikes, whereas A6 will be more squarish? However it doesn't suit the actual A6 very well.
Then hopefully the A8 will also have a more "stand-alone" design...
