Double door construction for vehicles

A double door structure which has front and rear doors opening outward to form an uninterrupted opening to front and rear seats has an impact load carrying assembly (A) for forming a side body reinforcing structure for protecting passengers from a side collision which comprises an impact bar (5) extending to and overlapping a side shell (46) of a vehicle body, upper bracket (12) fixedly mounted to the impact bar (5) and located to overlap a roof side rail (22) of the vehicle body and a lower bracket (13) fixedly mounted to the impact bar (5). The upper bracket (12) mounts a latch (18) and a belt anchor (26) of a seatbelt system thereon and the lower bracket (13) mounts catch pins (49) forming part of a door catch mechanism operative to prevent movement of the door upon an occurrence of a side collision.