The 2006 Cayenne is a part of Porsche's first-generation of true sport utility vehicles. It features a permanent all-wheel-drive system coupled with either a six-speed manual or automatic Tiptronic S transmission, depending on the trim. The Cayenne is available in three trims: base Cayenne, Cayenne S, and Cayenne Turbo. The base Cayenne is powered by a 3.2-liter V6 that delivers 247 horsepower. The upscale Cayenne S is packed with a 4.5-liter V8 producing 340 horsepower, while the high-performance Cayenne Turbo offers a turbocharged 4.5-liter V8 that punches out 450 horsepower. Porsche Stability Management, this brand's advanced system of electronic stability control, is a standard feature on all models. Inside the cabin, features such as Porsche Communication Management with navigation and a 14-speaker premium audio system stand out as highlights. The 2006 Cayenne offers a blend of performance and luxury that is characteristic of Porsche.