Vehicle door structure

A vehicle door structure adapted to be locked to vehicle body by a door lock mechanism, comprising a door inner panel and a sash component terminating at its lower end in a reinforcing section formed therein wherein said reinforcing section has a configuration conforming to a configuration of said inner panel in the area of attachment to the panel to provide a low waist line and thereby a wider field of vision while maintaining sufficient connecting strength between said sash component and said door inner panel when said reinforcing section is secured thereto, a door lock recess formed within said reinforcing section for reception of a door lock;

• and means for securing said reinforcing section and door lock mechanism to said inner panel with said door lock recess in registration with a corresponding opening in said inner panel.