2013 porsche cayenne turbo s

Porsche has revealed details on the new Cayenne Turbo S, and the most powerful of the company's SUV range will bow with an extra 50 horspower at its command. That nudges power to 550 hp and 553 pound-feet of torque, clipping 0.1 seconds from the machine's 0-60 dash and upping the top speed by ...