Abstract: An air guide device, especially an extendable and retractable rear spoiler on a motor vehicle, that includes an adjustable air guide element and at least one, also adjustable, flow element designed as an underflow guard. A sealing element, which seals off an intermediate space between the air guide element and the flow element at least when the air guide element is fully extended, is provided either on the flow guide element or on the flow element.

Abstract: A tailgate of a motor vehicle has a vibration absorber configured as a spring-mass system. In order to reduce a vibrating of the tailgate in the driving mode, it is provided that the vibration absorber is fastened as a separate component to the tailgate. The advantages mainly obtained are that of enabling the separate absorber mass to be coordinated with the tailgate in a simple manner.

Abstract: An air guiding device is fastened to the front end of the motor vehicle and has a pneumatic operating element in order to displace the air guiding device from an inoperative position into an operative position. In order to protect the pneumatic operating element, for example, from stone as the motor vehicle is driven, the air guiding device comprises a spoiler lip comprising a flexible and elastic material, the pneumatic operating element is constructed as an inflatable hose which, viewed in the driving direction, is arranged behind the spoiler lip, and the elastic spoiler lip, in its inoperative position, rests under prestress against the front end.

Abstract: An air guiding device is fastened to the front end of the motor vehicle and has a pneumatic operating element in order to displace the air guiding device from an inoperative position into an operative position. In order to protect the pneumatic operating element, for example, from stone throw, during a drive of the motor vehicle, the air guiding device comprises a spoiler lip comprising a flexible and elastic material, the pneumatic operating element being constructed as an inflatable hose which, viewed in the driving direction, is arranged behind the spoiler lip, and the elastic spoiler lip, in its inoperative position, resting under prestress against the front end.