In the A6 4G forum there is a long report on wind noise. The A6 4G obviously has a lot to do with wind noise, various retrofits (changed door and window seals) are currently being tested. I had expected the A6 to be significantly better with regard to wind noise than the A7 with its frameless windows – and that would be the only reason that would let me grab the A6. I recently had an A7 BiTDI (model 2012 and with D I found the 3.0 TFSI without insulating glass to be quite loud with regard to the wind noise, i.e. much louder than my A6 4F with insulating glass. I found the BiTDI with insulating glass to be very quiet at high speeds, but at Tempi around 100 (i.e. typical country road tempi) I was not enthusiastic about the noise comfort. What experiences did you have with wind noise at the A7? Were also retrofits necessary with you (e.g. Reposition the door, exchange sealing rubbers) and if necessary, have there been product improvements in the series? Here in the forum there is also one or the other that has already changed. Thank you in advance for your answers!