Just got an allroad 4.2 for my wife. Wow,what a great sound. Just going to have to go everywhere at full chat with the windows down. Solar sunroof as well - first impressions are that it really does help. No faster really than the old A6 Avant 2.7T that she had, just even more kit, newer and better noise.
If anyone is looking for an A6 Avant 2.7T, please check the classified and call me. I do need to sell it!