Yes, I was talking about this at the weekend - I think it is indeed entering where you say, then running down behind the door card and collecting on top of the seal at the bottom of the door. The door membrane is all new, the drain holes are all clear, but there is damp staining on the door card itself at this point.
Of course I could just follow the advice given on the 914world forum, which was based around 'why do you drive your car in the rain?'
