A method for producing a motor vehicle in which a front door and a rear door are mounted on the same side of a bodyshell. Then the doors are removed. The doors are then pre-assembled while the doors are removed. During the pre-assembly of the doors, the front door is fitted with a first side window and with a first trim, the rear door is fitted with a second side window and with a second trim, the second trim is finally positioned relative to the rear door and the second side window is finally positioned relative to the second trim. The doors are then mounted on the side, whereupon the first trim is finally positioned relative to the second trim and the first side window is finally positioned relative to the first trim while the doors are fitted to the side.