To pander to the growing need for more efficient cars, Porsche has made some powertrain decisions over the last few years that haven't made everyone happy. The Boxster and Cayman's four-cylinder turbos spring to mind first, but in a tacit acknowledgment of how fans felt about this, the 4.0-liter flat-six in the Cayman GT4 silenced all critics. And now, with the new Porsche Cayenne GTS and Cayenne Coupe GTS, there's more good news on the engine front: both models see a return to V8 power from the V6 used before.

Yesterday, leaked photos of the new Cayenne Coupe GTS revealed the new performance SUV in all its glory, so it's little surprise that the official unveiling has followed just 24 hours later. With the all-new Cayenne arriving last year, the much-anticipated GTS adds even more power and driving thrills to the mix.

But first, let's start outside. The Cayenne and its sleeker Cayenne Coupe counterpart are far removed from the awkward first-generation Cayenne. In GTS guise, the Sport Design Package comes as standard. Both have 21-inch RS Spyder Design wheels in satin black, LED exterior lighting, and black trim applied to the air intakes and tailpipes. The interior also gets a sportier look with Alcantara applied to the seat centers and headliner, and there are more than enough GTS logos to remind you what you're driving.

The 4.0-liter twin-turbo V8 engine is shared with the Panamera GTS and produces 453 horsepower and 457 lb-ft of torque. An eight-speed automatic and all-wheel drive help both models reach 60 mph in 4.2 seconds with the Performance Start function, before hitting a top speed of 168 mph. That's more than half a second quicker than the last Cayenne GTS.

The Porsche Active Suspension Management (PASM) dampers have been modified for their use in the GTS twins, while the chassis has been lowered by 1.2 inches relative to the Cayenne S, further improving handling and agility. A sport exhaust system is standard, too, while the Cayenne Coupe is available with a center exhaust system that not only looks sportier but is louder as well.

Arriving at US dealers in the fall of this year, the 2021 Cayenne GTS starts at $107,300 and the Cayenne Coupe GTS goes for $110,500, excluding a delivery fee of $1,350. This is in similar price territory to the more powerful BMW X5 M and X5 M Competition but follows the trend of Porsche fetching a premium over its German contemporaries.