Abstract: A roof for a motor vehicle, particularly a passenger motor vehicle which possesses an area to be opened intermediate the windshield and a roll-over girder disposed within the area of the rear window; the area to be opened in the roof is subdivided into two sections which are adapted to be displaced telescopically and can be retracted one within the other into the area of the roll-over girder so as to be completely covered by the outer member of the roll-over girder; the roll-over girder together with the outer covering member thereby preferably forms a hollow body.

Abstract: A retention mechanism for the passengers of motor vehicles which is able to deflect in the load direction when reaching a predetermined load, preferably under energy absorption; the deflection movement of the retention mechanism is thereby transmitted to the seat backrest in the sense that the coordinated seat backrest yields in the backward direction.

Abstract: A window lifter of a motor vehicle actuated by an auxiliary force whose drive is adapted to be engaged electrically; the actuating member for engaging or closing the electric switches for the up and down movement of the window is thereby constructed at the same time as crank arm for the mechanical manual actuation of the window lifter in case of emergency.

Abstract: An arrangement for suppressing droning in vehicle bodies, especially for the rear seats of motor vehicles, which includes a tunnel open in the downward direction for the drive shaft and/or for heating and ventilating lines; a sheet metal closure member thereby covers off the tunnel opening, preferably within the area between the forward seat cross bearer and the rear step in the vehicle floor leading to the rear floor; the closure member is secured at the tunnel edges by way of sound absorbing intermediate layers.