The Porsche Cayenne Turbo S was a high performance variant of the 958.1 Cayenne. Introduced for the 2014 model year, the Turbo S was the top of the line offering for the Cayenne. In addition to various upgraded suspension and drivetrain components, the Turbo S featured a twin-turbo 4.8L V8 engine that generated 542hp and 553 lb ft of torque. This powerful engine sent its power to all four wheels through an 8 speed automatic transmission. The 958.1 Cayenne Turbo S was only available for the 2014 model year, although the model series would reappear as the 958.2 Porsche Cayenne Turbo S.