The 1st generation Porsche Cayenne Turbo had 450 horsepower (340 kW), and acceleration from 0 to 60 mph (97 km/h) was in 5.3 seconds. A Cayenne Turbo S version was built back in 2006 to compete with the Mercedes-Benz ML63 AMG. The Cayenne Turbo S included a low-range case, a locking differential, and the height-adjustable, off-road suspension. The car was powered by a twin-turbocharged 4.5-liter V8 that produced 520 bhp (390 kW) and 700 N·m of torque. Accelerated from 0-60 mph (96 km/h) in 5.0 seconds and its top speed was 171 miles per hour.
A new Porsche Cayenne Turbo was revealed at the 2008 Beijing auto show. It had 50 hp (37 kW) more power, and now accelerating from 0-60 mph (96 km/h) in just 4.9 seconds. Also revealed with the new Turbo was a new 550 horsepower (410 kW) Turbo S. Acceleration from 0-60 mph is 4.7 seconds and has optional ceramic composite brakes.