Motor-vehicle having a rear door which can be opened in a reduced space

A motor vehicle has a rear door (3) connected to the body (2) by means of an articulated quadrilateral, shaped and arranged in such a way that, during the manoeuvre of opening the rear door, it does not substantially project or it projects only by a very small amount in the longitudinal direction from the rear part of the motor vehicle. In the position of complete opening, the rear door is set partially on top of and at a distance from the roof (7) of the motor vehicle.