2013 Porsche 911 TurboThe new generation Porsche 911 (991) is scheduled to grace us with his presence at the Frankfurt Motor Show in September this year in his Carrera and Carrera Cabrio bodystyles. We saw a lot of spy photos showing the details of each of these options, but new spy shots revealed higher performance version - the 911 Turbo - which should be making its world debut at the 2012