Porsche Cayenne (955) performing high-speed towing maneuvers.

Kind of silly as they could cause damage to the Porsche 911 on the trailer if the car slid to the side coming into contact with the trailer (scratch the wheels/body, or dent body panels) You can see the car moving around a bit as it gets tossed around.

http://www.youtube.com/watch?v=IQPNiAB6xbM&feature=related