A hybrid with more than 800 horsepower?

The 2021 Porsche Cayenne Turbo GT is an upcoming version of the Cayenne Coupe, a sleek SUV that Porsche originally introduced for the 2020 model year. Spotted testing in the wild with a different exhaust layout, the 2021 Cayenne Turbo GT is rumored to become the company’s range-topping model. It could also be a hybrid that generates more oomph than the already impressive Cayenne Turbo S E-Hybrid model. The fact that it was also spotted at the Nurburgring in the past suggests it will be more dynamic than any other Cayenne on the market. The equivalent of the 911 GT3 for SUVs if you will. The name is not yet official, but it could be called the Cayenne Coupe Turbo GT5, a badge that Porsche trademarked back in 2015.

Exterior

  • Looks like a regular Cayenne Coupe
  • Small sporty add-on?
  • New exhaust pipe layout
  • Exclusive colors?
  • Green accents
2021 Porsche Cayenne Coupe Turbo GT Exterior Spyshots
- image 878765

The test vehicle doesn’t wear camouflage as most prototypes do, so we can get a full glimpse of the exterior. But there’s nothing much to see at first glance, as this test car is identical to the Cayenne Coupe we’re already familiar with.

The front section is an identical copy of the regular Cayenne Coupe that Porsche unveiled in early 2019.

It features the same wide grille in the center, large side vents with integrated LED daytime running lights, and similar headlamps.

The same goes for the profile, which doesn’t feature any changes compared to regular Cayenne Coupe. This test car boasts body-colored cladding, which is usually black, but it’s a feature you can order off the options list. The same story goes for the rear end. The test vehicle features the same taillights bar, the same spoiler on the tailgate, and the same rear fender with a black diffuser.

2021 Porsche Cayenne Coupe Turbo GT Exterior Spyshots
- image 878762

However, a closer look at that diffuser reveals the only feature that sets this prototype apart.

Although it has the usual rectangular exhaust pipes mounted toward the edges, it also features two round tips in the cente

r. Porsche actually used a clever way to hide them, but the snow on the bumper, and especially the melted snow around those pipes, gives them away. This exhaust layout is unique to this model and suggests a unique drivertrain as well.

Then there’s the hybrid scenario that’s been floating around recently. How do we know this test SUV also hides electric motors under the skin? Well, we don’t. But a similar model, this time around painted orange, was spotted a while back with green "turbo" badges and green brake calipers. And we already know that these green details are used on electrified models.

Interior

  • Similar to standard model
  • A bit more luxury
  • Leather upholstery
  • Alcantara
  • Limited rear headroom
  • Decent trunk space
The 2019 Porsche Cayenne Turbo: An SUV with Attitude and Sports Car Performance High Resolution Interior
- image 731161

There are no photos of the interior to look at, but it’s safe to assume that this version will be identical to the regular Cayenne Coupe, which in turn borrows from the boxier Cayenne model.

Look for the same rectangular dashboard with a big infotainment display in the center, a trapezoidal center console with controls on both sides of the gear shifter, and vertical A/C vents at the corners.

The three-spoke steering wheel will sit in front of a digital instrument cluster with a big rev counter in the center.

But unlike the regular SUV, it comes standard with eight-way adjustable sports seats. These are very similar to the 18-way seats that are standard in the Turbo version, so they offer enhanced lateral support and feature integrated headrests. But this range-topping hybrid could get the 18-way seats as standard.

The 2019 Porsche Cayenne Turbo: An SUV with Attitude and Sports Car Performance High Resolution Interior
- image 731162

Of course, you should expect other extra goodies as well. While the base Cayenne Coupe still features plastic bits and cheaper materials, the Turbo GT should be loaded with fine leather and Alcantara. It could also feature carbon-fiber trim, at least on the options list.

Just like the regular Cayenne Coupe, the Turbo GT will probably come with a rear bench as standard. You’ll be able to opt for the individual rear seats at no additional cost if you want less space but more comfort for your rear passengers.

The hybrid layout won’t impact trunk space thanks to the batteries being placed under the floor, but the coupe layout does. When compared to the standard Cayenne, that is. The Cayenne Coupe Turbo model takes up to 21.2 cubic feet, but once the rear seats are folded flat, capacity increases to 54.3 cubic feet. That’s six cubic feet less than the regular Cayenne.

But although it’s not as roomy as the regular Cayenne, the Cayenne Coupe Turbo GT will offer a bit more room than the BMW X6 M. The German SUV comes with 20.5 cubic feet of space with the rear seats in place, so you’ll benefit from an extra 0.7 cubic feet in the Porsche. With the rear seats folded, the X6 will take up to 53.8, which is a half-cubic-foot decrease compared to the Cayenne Coupe.

On the other hand, the Cayenne Coupe Turbo GT will fall behind the Mercedes-Benz GLE Coupe when it comes to cargo room. The Merc offers an additional cubic foot with the rear seats up and an additional 6.4 cubic feet with the rear seats folded flat.

Drivetrain

  • Could be hybrid
  • 4.0-liter V-8
  • Electric motor
  • More than 800 horsepower?
  • 0 to 60 mph in 3.4 seconds
  • Top speed over 180 mph
2021 Porsche Cayenne Coupe Turbo GT Exterior Spyshots
- image 878766
The souped-up Cayenne Coupe could arrive with more than 800 horsepower

While the exterior and interior will be almost identical to the Cayenne Coupe we already know, things will change quite dramatically under the hood. Just like the regular Cayenne, the Cayenne Coupe is available with five different drivetrains. The base mill is a turbocharged, 3.0-liter V-6 rated at 335 horsepower and 332 pound-feet of torque. The second option is the Cayenne S, which features a 2.9-liter V-8 that delivers 434 horses and 406 pound-feet. The third gasoline option is the twin-turbo, 4.0-liter V-8 in the Coupe Turbo model. This powerplant cranks out a solid 541 horsepower and 568 pound-feet of torque.

Moving over to hybrids, the E-Hybrid pairs a 3.0-liter V-6 gas engine and an electric motor for a total output of 456 horsepower and 516 pound-feet of torque. Finally, the Turbo S E-Hybrid brings together the 4.0-liter V-8 in the Turbo with an electric motor. The V-8 is identical to the Turbo model, while the electric motor generates 134 horsepower thanks to a 14.1-kWh battery. Total output stands at 671 horsepower and 664 pound-feet of torque.

2021 Porsche Cayenne Coupe Turbo GT Exterior Spyshots
- image 878760

Porsche is obviously aiming to offer more output with the Cayenne Coupe Turbo GT, but we don’t know the layout yet. However, word has it Porsche wants an even more powerful version of this combo. One that would also make it into the Panamera. So how much power could Porsche squeeze from this hybrid drivetrain?

The Cayenne Coupe GT should hit 60 mph in 3.4 seconds

Well, the Lamborghini Urus features a similar engine that was tweaked to pump out a whopping 641 horses and 627 pound-feet. If Porsche uses an identical unit, total output could increase by around 100 horsepower. That around 770 horses. But reports claim that the souped-up Cayenne Coupe could arrive with more than 800 horsepower. An even more powerful V-8 wouldn’t make much sense in terms of reliability and Lamborghini will probably be against it, but Porsche could also tweak the electric motor. What’s more, it could add a second motor, which would make it even easier to extract more than 800 horses.

This output would make the Cayenne Coupe Turbo GT impressively fast. With the Cayenne Turbo S E-Hybrid already capable to hit 60 mph from a standing start in 3.6 seconds, the GT would probably reach the same benchmark in 3.4 clicks. That’s quicker than a lot of sports cars out there and quicker than most high-performance SUVs on the market.

Top speed could also increase beyond that of the Cayenne Turbo S E-Hybrid. The existing SUV tops out at 183 mph, an impressive benchmark by itself, but slightly below some of the competition. The Bentley Bentayga W12 and the Lamborghini Urus, for instance, top out at 187 and 190 mph, respectively. The Cayenne Coupe Turbo GT won’t hit 190 mph, but it could get close at 186 or 187 mph.

Prices

2021 Porsche Cayenne Coupe Turbo GT Exterior Spyshots
- image 878772

It’s too early to talk about prices here, but it’s safe to assume that the Cayenne Coupe Turbo GT will become the most expensive vehicle in the lineup. With the Turbo S E-Hybrid priced from $164,400, the GT model could fetch more than $180,000. If Porsche gives the GT a more exclusive status with limited-edition features, it could cost even more than that, like close to $200,000.

Competition

Lamborghini Urus

2019 Lamborghini Urus Exterior
- image 749815
2019 Lamborghini Urus
Lambo’s first SUV since the LM002 was discontinued in 1993 with just 328 models produced

While not a hybrid SUV, the Urus is the main competitor for this souped-up Cayenne Coupe model. Basically the first super SUV on the market, the Urus moves about thanks to a twin-turbo, 4.0-liter V-8 that cranks out 641 horsepower and 627 pound-feet of torque. That’s a lot of oomph, the kind of output you’d expect from a vehicle with a raging bull badge. Not only powerful, the Urus is quick too. It needs only 3.4 seconds to hit 60 mph from a standing start, while its top speed comes in at 190 mph. For the record, the Urus is the fastest production SUV built so far. The looks match the performance. The Urus features an aggressive design that reminds of both the Huracan and the Aventador, while the interior looks both sporty and luxurious. It’s also highly customizable. Pricing starts from $200,000 before options, so it will be only slightly more expensive than the Cayenne Coupe Turbo GT.

Read our full review of the 2020 Lamborghini Urus

Conclusion

2021 Porsche Cayenne Coupe Turbo GT Exterior Spyshots
- image 878761

This beefed-up Cayenne Coupe is simply crazy. Granted, it might not look different than other Cayenne models, but Porsche is aiming for crazy things in the drivetrain department. If rumors prove to be true, it will be the first production SUV with more than 700 horsepower. Not only that, but it could also be the first production SUV with more than 800 horsepower! So not only it will put the Lambo Urus to shame, but it will also return good fuel economy and even offer a bit of all-electric range. If that’s not good news, I don’t know what is. Now let’s hope that the Turbo GT is more than just a rumor.

  • Leave it
    • Looks like a regular Cayenne Coupe
    • Could be really expensive
Ciprian Florea
Senior Editor and Supercar Expert - ciprian@topspeed.com
Ciprian's passion for everything with four wheels (and more) started back when he was just a little boy, and the Lamborghini Countach was still the coolest car poster you could hang on your wall. Ciprian's career as a journalist began long before earning a Bachelor's degree, but it was only after graduating that his love for cars became a profession.  Read More
About the author

Related Articles

2020 Porsche Cayenne Coupe

2019 Porsche Cayenne Turbo

What do you think?
Show Comments
Car Finder: