hi i think this maybe age related, as in the door/window frame over time and with lots of slaming doors creeps/bows slightly - this combined with the low pressure that would develop over the drivers side if wind were blowing from left to right is enough to open enough of a gap to create or let in the noise, this is just my idea as i had similar experience and i adjusted the door catch, this pulled the door in much tighter preventing the problem happening again