The 2010 Porsche Panamera is a brand-new luxury sports sedan, the first of its kind from the legendary sports car manufacturer. The Panamera seats four passengers swathed in a luxurious interior that is very well equipped. The S trim is available with RWD or AWD and is powered by a 4.8L V8 making 400 hp. The mighty Turbo version is only available with AWD and adds twin-turbos to the V8 to produce 500 hp. All versions are equipped with the Porsche PDK dual-clutch transmission which can be driven smoothly or be used to snap off lightning quick shifts. The Panamera is also home to a unique start-stop system which can shut the engine off at complete stops to help conserve fuel, it turns back on as soon as the brake pedal is released.