Cayenne GTS Coupe models gain optional new central exhaust Atlanta, Georgia. Porsche announced two new model variants to the Cayenne lineup today: the 2021 Cayenne GTS and Cayenne GTS Coupe. The highly sporty new models mark the return of a V8 engine to the GTS. Agile performance with a V8 soundtrack The Porsche-developed 4.0-liter twin-turbo V8, which is shared with the Panamera GTS, generates 453 hp (338 kW) and 457 lb-ft of torque. Mated to a standard eight-speed Tiptronic S automatic transmission and Porsche Traction Management all-wheel drive, the new models are capable of reaching 60 mph in 4.5 seconds or 4.2 seconds using Performance Start, which is included in the optional Sport Chrono Package (standard on Coupe). Those acceleration times mark an improvement of 0.4 seconds and 0.6 seconds respectively as compared to the 0-60 mph sprint of the preceding Cayenne GTS. Both models have a top track speed of 168 mph. New central Sport Exhaust for Coupe models Sport...