Abstract: A motor vehicle is provided with a rear-mounted air guide device having a rear spoiler provided on a hood at the rear and a connected rear airfoil. The rear airfoil is used only when needed to produce the necessary downforce so that no damage occurs to the air guide device when passing through an automatic car wash. For that purpose, the rear airfoil is movable by a drive device from a retracted resting position into an extended operating position and vice versa. The rear airfoil in the resting position is largely lowered into a groove-shaped receptacle provided on the top of the rear spoiler.

Abstract: An adjusting device for a door window pane of a motor vehicle, preferably made frameless and cooperating with a window lifter, includes at least one upright guide rail running inside a door body for the window lifter, with the guide rail being pivotable around an upper pivot point in the direction transverse to the vehicle and being lockable by the adjusting device engaging in the lower area of the guide rail in a position such that the door window pane abuts an adjoining sealing means in the car body with pretensioning in the marginal area. To permit rapid, simple adjustment of the door window pane without removing the door trim, provision is made such that the guide rail is adjustable by its lower end in the transverse direction with respect to the door window pane in a displacement guide and is lockable by fastening elements that are accessible from the underside of the door body.