Hello.

Has anyone experienced a wind whustle above 100 km/h coming from driver's window;

Yes sir,have exactly the same,irritating as I suffer from tinnitus anyway,will see what they can do when I take it in for first service,boss says passenger one doesn't do it!

I have the whistle but it seems to be more of an engine (turbo?) sound.

I do raise and lower all the windows before motorway driving to make

sure they rise and seat completely.

Did that, I also feel folded the mirror to see if any difference but it's still there.

Yesterday I drove above 100km and pressed my hand against the window. The whistling stopped so there must be a small gap somewhere between the window glass and the upper rim.

Might be worth resetting the electric window closure position; it may not be closing that last couple of mm?