Did you guys have the AC on auto settings? I always set mine on auto, so it adjusted the air flow by itself through the vent needed.
I know that the AC on my F10 and F15 are not as cold as my previous E60.
Also on the E60 I can adjust the air flow strength manually through the iDrive.
I guess I have learned how to live with it.
As far as the noise, I never noticed it since I always hear the wind noise on top of the radio's sound first.