Abstract: A vehicle configuration includes a cab portion and a cargo box. The cargo box has a front wall adjacent the cab portion. The vehicle configuration is adaptable for carrying a cargo load longer than the cargo box. A collapsible seat back is positioned against the front wall and structurally supported by the front wall. The seat back is collapsible in a forward direction to a substantially flat position in the vehicle. A headrest is fixed to the front wall. The front wall is collapsible onto the seat back in the cab portion when the seat back is in the substantially flat position such that the headrest is collapsible with the front wall. In this configuration, a longer load may extend from the cargo box into the cab portion on top of the collapsed front wall.