Motor vehicle with pivotable door with frameless window

The motor vehicle (1) has a swivel-mounted vehicle door (2), which has a door body and a frameless windowpane (4) movable in and out of the door body. A demand-based actuable device (6) is arranged inside the door body for active clamping and release of the windowpane. The device engages to the windowpane in the area of the vertical disk side edge, which runs adjacent to an open door edge.