VEHICLE DOOR STRUCTURE AND METHOD FOR MANUFACTURING THE SAME

A vehicle door structure includes a mirror retainer having a main body, which is joined to the front end of an outer reinforcement with a part of the main body overlapping with the outer reinforcement. The mirror retainer includes an upper leg, which has a first facing surface facing a lower leg and is joined to the inner panel. The lower leg has a second facing surface facing the upper leg and is joined to the inner panel. A reinforcing member is connected to the first facing surface and at least one of a main body inner surface and the second facing surface so as to reinforce the mirror retainer.