Extendable rear gate for vehicle cargo bed

A vehicle having a passenger area and a cargo area with fixed side walls and a bottom surface, the passenger area formed forwardly of the cargo area, said vehicle comprising:

• a tailgate section forming a rear portion of the vehicle cargo area and including rear corner pillars incorporating indicator lights, a deployable gate extending between said corner pillars for selective access to the cargo area, and secondary side walls extending longitudinally from said rear corner pillars, said tailgate section longitudinally movable relative to the fixed side walls and bottom surface between a retracted position and an extended position to expand the cargo area of the vehicle, a rail and roller assembly having at least one rail member fixedly secured within each of said secondary side walls of said tailgate section and at least one roller set fixedly mounted within each of said side walls of the cargo area, said at least one roller set movably supporting a mating rail member for longitudinal movement of said tailgate section, said secondary side walls being telescopically received within the fixed side walls of the cargo area during movement of said tailgate section wherein the visual integrity of the vehicle is maintained as said vehicle section is selectively moved between said retracted and extended positions.