Collapsible vehicle seat assemblies

A collapsible seat assembly includes first and second risers supported on a vehicle floor. The first and second movable supports are pivotally connected to the first and second risers, respectively, by first and second parallelogram linkages. Each movable support has a front end and a rear end. A lower seat cushion pan is pivotally connected to the front ends of the movable supports. A seat back and recliner mechanism is pivotally connected to the rear ends of the movable supports. The lower seat cushion pan and seat back are pivotally collapsible forward to substantially horizontal positions in which they are substantially flush and parallel with each other to maximize cargo space in the vehicle.