The new 2021 Porsche Cayenne GTS and Cayenne GTS Coupe have been revealed, and they're both bringing forth the power of the V8 engine. Both of these variants will be powered by the same 4.0-liter twin-turbo V8 engine found in the Panamera GTS. This engine creates 453 horsepower and 457 lb-ft of torque, and it's mated to Porsche's eight-speed Tiptronic S automatic transmission. When pushed for urgency, these Cayennes can sprint from 0 to 60 mph in 4.5 or even quicker at 4.2 seconds when Performance Start is used (part of the Sport Chrono Package that's standard in the Coupe). Another aspect of the new 2021 Porsche Cayenne GTS and Cayenne GTS Coupe that will surely catch the ears of many is the new centrally-located Sport exhaust system on the Coupe models that gives off a wonderful exhaust note. These new models will arrive in dealerships this fall. The MSRP for the 2021 Cayenne GTS is $107,300 while the 2021 Cayenne GTS Coupe is priced at $110,500.