Horizontally opposed engine, naturally aspirated, positioned centrally. 4.0-liter displacement. Six cylinders. 414 hp. Sounds crazy. It is.
The completely redeveloped six-cylinder horizontally opposed engine has direct fuel injection (DFI), integrated dry-sump lubrication and adaptive cylinder control. In addition, a variable intake manifold with switchable resonance valves provides the engine with optimum ventilation. It sounds technical and a bit dry, but it’s really the exact opposite.
With the 4.0-liter displacement, the engine generates a mighty 414 hp – 29 hp more than the previous model. The maximum engine speed? 8,000rpm. The maximum torque of 309 lb-ft is from 5,000 to 6,800rpm. Meaning the new 718 Cayman GT4 sprints from 0 to 60 mph in just 4.2 seconds. The maximum speed: above 188 mph.
A statement in itself: the sound of the new 718 Cayman GT4. Thanks to the new precise sport exhaust system with its two clearly separated black tailpipes left and right of the rear diffuser. For an even more powerful sports car sound at the press of a button.
6-speed manual transmission
The precise 6-speed manual transmission is fitted with a dual-mass flywheel and its optimally tuned gear ratios bring the high power output of the engine directly to the road. It also ensures a particularly sporty driving experience. Tight curve ahead, shift down, long straight, shift up: it’s in your hands – in the truest sense of the word. That is performance which is not only measured in power values, but also in all quantities of driving pleasure. And the dynamic automatic throttle-blip function plays its part too in keeping you, and your endorphin levels, busy.
Porsche Torque Vectoring (PTV) including rear differential lock
In short: PTV improves the dynamic performance. In detail: the integrated rear differential lock enables higher traction and significantly increased lateral dynamics and vehicle stability during load changes in corners and when changing lanes. In addition, when the car is driven assertively into a corner, brake pressure is applied to the inside rear wheel. Consequently, a greater amount of drive torque is distributed to the outside rear wheel, almost pulling the car into the corner. Steering response is improved, agility is increased.
Is it wise to be jolted lap after lap? To feel every inch of the track, your heart rate always off the scale? Of course not. Which is precisely why it is so much fun.
And that is exactly why the adaptive GT sport suspension is more consistently designed for driving pleasure. The result: extraordinary agility, high driving safety and stable handling in the high-speed range. The basis: GT technology. The lightweight spring-strut axle at the front is designed in typical GT style, the lightweight spring-strut axle at the rear is adjusted to the high performance of the new 718 Cayman GT4 with additional reinforcements and helper springs as well as specific wheel mounts. Ball joints on both axles also connect the chassis to the body in a particularly streamlined way, enabling an even more precise wheel control. The height, camber, toe angle and the anti-roll bars of the chassis can be adjusted individually for the race track. You will quickly see what this means.
No mild breath of air. No gentle breeze. The signs show a storm is brewing. A glance at the new 718 Cayman GT4 is enough to see: air resistance is not an issue.
The aerodynamics concept of the new 718 Cayman GT4 has been honed once more. Starting with the front fascia. Its clearly defined form with the typical Porsche sweepback gives the headwind an explicit direction and a clear purpose: to produce optimum tire contact pressure.
The highly distinctive front spoiler lip with an additional spoiler in front of the wheel arches provides aerodynamic downforce on the front axle. The central air intake in the front apron also optimizes the aerodynamics and channels the air stream up through the air outlet in front of the front lid. Even the underside of the front spoiler lip has been aerodynamically optimized. Here, a special profile – similar to the surface of a golf ball – ensures as little drag as possible.
Air curtains in the front fascia minimize the air turbulence created on the wheels and therefore minimizes the drag by releasing the inflowing air precisely in front of the wheels from the wheel arches.
The new air intake grilles are equipped with a honeycomb style surface finish, meaning they offer the headwind less drag, however, they still reliably protect the radiator from falling rocks – and eat flies for breakfast.
Rational. Irrational. Sanity. Insanity. Perfect. Perfectly crazy. The difference is sometimes extremely subtle. And sometimes it is as sharp as a razor.
The new 718 Cayman GT4 is the perfect sports car for those who like to push the limits. For those who would rather ask ‘why not?’ than ‘why?’. For those who take fun seriously and who would rather sit in a sport seat than a leather armchair.
For those people, we have fitted the new 718 Cayman GT4 with everything which makes your pulse race. 4.0-liter six-cylinder horizontally opposed and naturally aspirated engine with 414 hp, manual transmission, rear wing. With a diffuser which demands respect, and extremely output oriented aerodynamics. GT3 technology for the chassis and the interior – motorsport genes. The result is a brutal driving machine which has never even heard of autonomous driving.
Perfect? Perhaps. Irrational? Probably. The truth – like the engine – is in the middle. But in this case, this middle is not a compromise, it’s razor sharp.
Looks good. Feels good. Sporty streamlined purism, customary Porsche high ergonomics. Everything perfect. Everything actually quite rational. Until the engine starts and makes the hairs on your arms stand up.
Immediately the center of attention: the instrument cluster with three round instruments and a central tachometer, on which the yellow needle skyrockets, typical of the 718. The dial face in a titanium finish is marked with a ‘GT4’ logo.
The GT-specific sport steering wheel has top center marking and black spokes including inlays. Alcantara® on the steering wheel rim and also on the gear lever ensures good grip. In addition, the material proven in motorsport is used for the door pulls in the door panels, the lid of the center console storage compartment as well as A-pillars and the roof lining.
The decorative stitching, on the armrests in the doors and the seats, among other places, are upholstered in silver color. As are the ‘GT4’ logos on the headrests and the door pull loops. The dashboard trim strips and the center console in brushed aluminum highlight the sporty character of the new 718 Cayman GT4. The brushed aluminum interior package is also optionally available in GT-specific Anthracite.
A leather interior with extensive leather, stitching and Alcantara® items is optionally available. Visual highlight: the dashboard trim strips upholstered in brushed aluminum continue on the doors.
Together with the leather interior, the decorative stitching and the door pull loops can also be upholstered in contrasting colors, red or yellow. The seat belts can also be in matching colors if desired.
The seats of the new 718 Cayman GT4 also reflect its sporty appeal. The cover, in all seat variants, is in black leather, the seat centers in Alcantara®. The headrests are embroidered with the ‘GT4’ logo in different stitching colors according to equipment variant.
On the race track or on the road: Porsche Connect expands the existing vehicle functions of the 718 Cayman GT4 with smart services and apps. All designed to make the connection between driver and car even closer. To intensify that Porsche fascination, and to make the challenges of everyday life quick and easy to overcome.
Porsche Communication Management (PCM)
Porsche Communication Management (PCM) is your central control center for audio and communication. In its latest generation with mobile phone preparation and audio interfaces, it also features a high-resolution 7˝ touchscreen display, enabling easy control of the majority of in-car functions. On the move, you can enjoy your favorite music via the CD/DVD drive, SD cards, internal 10GB hard drive (jukebox), the AUX input or the USB connection, for your iPhone®, for example. Or you can simply listen to the radio. Your 718 also enables you to use countless Car Connect Services via smartphone, such as vehicle positioning. The optional smartphone compartment in the center console transfers your mobile phone signal to the external antenna of the car – conserving phone charge and providing optimum reception.
In addition to its range of smart services, Porsche Connect also offers three smartphone apps. The Porsche Connect app allows you to send destinations to your Porsche before you start your journey. As soon as your smartphone has connected to PCM, you will be able to display these in the vehicle and start route guidance directly. Even your smartphone calendar can be viewed directly on PCM and stored addresses used for navigation. What’s more, the Porsche Connect app gives you access to millions of music tracks thanks to its built-in music streaming function.
The Porsche Car Connect app lets you use your smartphone or Apple Watch® to retrieve vehicle data and remotely control selected vehicle functions. Another feature is the Porsche Vehicle Tracking System (PVTS) including theft detection.
The new Porsche Track Precision app allows driving data to be displayed in detail, logged and analyzed on your smartphone.
The new 718 Cayman GT4 shows maximum performance, not only when sprinting from 0 to 60 or more, but also when slowing back down to 0. This is provided by six-piston aluminum monobloc fixed calipers at the front and four piston units at the rear with red finish. For greater inherent stability and faster response when applying and releasing the brake, even under extreme loads. The composite brake discs at the front and the rear have a diameter of 380mm and are cross-drilled and internally vented – powerful braking even in adverse weather conditions.
The brakes also have efficient ventilation and cooling for high stability. This is ensured by distinctive cooling channels, as well as brake air spoilers and air guide.
Advanced airbag technology: integrated in the form of full size driver and passenger airbags, which are inflated in two stages depending on the severity and type of accident. Porsche Side Impact Protection System (POSIP) is also standard. This consists of side impact protection elements in the doors and two side airbags per side: a thorax airbag is integrated in the side bolster of each seat, while the door panels each contain an upwards-inflating head airbag.
Specs reflect base model unless otherwise noted.
Design and cylinders
Naturally aspirated boxer 6
Max. power at rpm
Max. engine speed
Max. torque at rpm
5,000 - 6,800 rpm
13 : 1
Max. power per liter
EPA estimates not yet available.
Chassis and Suspension
Lightweight spring-strut front axle, anti-roll bar and suspension mountings partly ball-jointed
Lightweight spring-strut rear axle (incl. helper springs), anti-roll bar and suspension mountings partly ball-jointed
Electromechanical direct steering with variable steering ratio
Porsche Stability Management (PSM) incl. ABS, with two switchable stages ( "ESC OFF" and "ESC+TC OFF")
Anti-lock Braking System (ABS)
Component of Porsche Stability Management (PSM)
Component of Porsche Stability Management (PSM)
Top track speed
0 - 60 mph
Width w/ mirrors folded
Drag coefficient (Cd)
Gross Vehicle Weight Rating (GVWR)
Front luggage compartment volume
Rear luggage compartment volume