Porsche has revealed long awaited details on two versions of Cayenne SUV, scheduled for debut in late 2002. Shown here is the Cayenne Turbo, powered by a Porsche-designed 4.5-liter, twin-turbocharged V8 engine producing 450 horsepower and 457 lb-ft of torque. Extra front air inlets, power domes on the hood and four tailpipes visually distinguish the Cayenne Turbo from its milder sibling, the Cayenne S, a normally-aspirated 4.5-liter V8 model rated at 340 horsepower and 310 lb-ft of torque. The Cayenne Turbo has a top speed of 165 mph and accelerates from zero to 62 mph in 5.6 seconds. The Cayenne S performance numbers are zero to 62 mph in 7.2 seconds with a top speed of 150 mph.

A six-speed Tiptronic S transmission is standard equipment on the Cayenne Turbo and both Cayenne versions have permanent all-wheel drive, an inter-axle differential lock and additional low-range gears, and the Porsche Stability Management (PSM) system. The Cayenne's towing capacity is 7716 pounds. The Cayenne Turbo and Cayenne S are 75.9 inches wide and 66.9 inches tall, with a wheel base of 112.4 inches. The overall lenth of the Turbo version is 188.43 inches vs 188.27 inches for the Cayenne S.

While Cayennes will be built in Porsche's new facility in Leipzig, Germany, the engines will be built in Zuffenhausen. Porsche will produce approximately 25,000 Cayennes during the first full year of production, 70 percent of which will be for export.