A French patent describes a split tailgate that can fold flat against a car’s roof. By redesigning a car’s tailgate, Stellantis could significantly boost cargo volumes. Filed recently in France, it describes a split tailgate that would let ordinary cars haul long loads the way a pickup truck does. The second part of the split tailgate is where things get a little more complicated, as CarBuzz reports. Will Stellantis actually push forward and set about developing a split tailgate like this?