The Turbo S version was the sportiest version for the second generation of the Porsche Cayenne and, along with the rest of the stable, it received a facelift for the 2015 model year. The revised engine offered 20 hp more than its predecessor. It was the same twin-turbo 4.8-liter V8 unit and it was paired to an 8-speed auto and like the Turbo, it was offered with a standard air-suspension but adds Ceramic Brakes system.
As the flagship of the Cayenne army, the Turbo S was well received by those who were looking for a faster SUV. And it wasn't only the speed, but also the cornering speed that the Turbo S was capable of. The engine was based on the 4.8-liter V8 unit installed in the Cayenne S and Cayenne Turbo, but with a higher compression ratio that led to 50 more hp. The standard transmission was an 8-speed Tiptronic S.
Porsche made things more interesting with the launch of a Turbo S version in 2006 to compete with the Mercedes-Benz ML 63 AMG. The Turbo S is powered by a twin-turbocharged 4.5 L V8 that produces 521 PS (383 kW; 514 hp) and 720 N⋅m (530 lb⋅ft) of torque; Acceleration from 0–60 mph (97 km/h) takes 5.0 seconds and the top speed is 171 mph (275 km/h); It features a six-speed automatic Tiptronic transmission.
The facelift for the flagship Cayenne came in 2008. The Porsche Cayenne Turbo S is the most powerful Cayenne ever built. Sharing the same essential 4.8-liter V8 engine as the Cayenne S, GTS and Turbo, the Turbo S got 550 horsepower and 553 lb.-ft. of torque. That's a ten percent increase in power and a seven percent boost in torque over the Cayenne Turbo. 0 to 60 mph is over in 4.7 seconds on its way to a track-proven top speed of 174 mph. Like the Cayenne S and Cayenne Turbo, the Turbo S comes standard with a six-speed Tiptronic S driver-shiftable automatic transmission.