wheel well of the vehicle when the door 20 is in the open stored position turning back to fig1 there is shown front panels 80 80 u2032 the panels 80 80 u2032 are preferably permanently installed since they do not interfere with the ingress or egress from the passenger compartment although the panels could be made to be removable if desired each panel is preferably framed as part of the doorframe 16 the panels 80 80 u2032 preferably include a transparent or translucent window supported by the frame and made of acrylic polycarbonate or glass to enhance passenger visibility to retain or lock the door 20 in its open and or closed position a rotary latch system preferably is used as shown in fig9 a pair of rotary latches 120 120 u2032 are mounted on the door 20 in spaced location so as to receive in locking engagement a respective striker pin 30 30 u2032 when the door is closed upon closing the door the striker pins 30 30 u2032 engage respective latch cams in the rotary latches 120 120 u2032 and slide back into the latch body along with the cam the strikers remain within the body of the latch providing a strong and secure connection suitable latches include single actuation and dual actuating rotary latches on opening the latch cam.