The new Porsche Cayenne Turbo GT, only available in the Coupe body style, is powered by a 631 horsepower 4.0-liter twin-turbo V8 engine mated to a modified eight-speed Tiptronic S automatic transmission to offer quicker shift times. The Cayenne Turbo GT is available to order now and expected to reach U.S. dealers in early 2022 for $182,150 (including a $1,350 delivery, processing and handling fee).