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Porsche Cayman GT4 RS

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Porsche 718 Cayman GT4 RS Clubsport

The 718 Cayman GT4 RS Clubsport has become a pivotal and successful customer racing vehicle within the growing GT4 segment. Bridging the gap between pure club racing and professional customer racing, the latest model version competed in over 550 races last year, achieving 19 overall victories, 80 class wins, and...

Maintenance & Service Schedule

Porsche 718 Cayman GT4 RS Maintenance Schedule

Porsche 718 Cayman GT4 RS Maintenance & Service Schedule The Porsche 718 Cayman GT4 RS is the most extreme Cayman ever built, featuring a 9,000 RPM 4.0L flat-six from the 911 GT3, aggressive aerodynamics, and a lightweight motorsport-inspired chassis. Designed for track performance and high-revving thrills, the GT4 RS demands...

VIDEO: Track Battle – Taycan Turbo GT vs. GT4 RS

The new Taycan Turbo GT is the most powerful road-going Porsche ever made. It has a 1,019-horsepower powertrain that when equipped with the Weissach package, the Taycan Turbo GT can accelerate from 0 to 60 mph in just 2.3 seconds and reach a top speed of 190 mph. The dual...

VIDEO: Manthey-Tuned GT4 RS Blazes Nürburgring Nordschleife

Christian Gebhardt, sport auto’s test driver, achieved an impressive lap time of 7:12.87 minutes in a Porsche 718 GT4 RS equipped with the Manthey-Kit around the Nürburgring Nordschleife. The Manthey Kit enhances the 718 Cayman GT4 RS by improving its aerodynamics and suspension, significantly boosting its performance. Key modifications include...

FOR SALE: Porsche Cayman 718 GT4 RS, with Over $74,000 in Options, is Looking for A New Owner.

2023-Porsche-GT4RS-Linden-Green

The 718 Cayman is often seen as the entry-level model in Porsche’s model lineup. However, there’s nothing ‘entry-level’ about its RS variant, a track-honed sports car that borrows several components from Porsche’s legendary GT3 cars. The result is the most powerful mid-engined sports car Porsche has ever made. The 718...

VIDEO: Porsche 718 Cayman GT4 RS Clubsport Sees Action On The Track

The 718 Cayman GT4 RS Clubsport lives up to its name by transforming the already impressive GT4 RS into a track-ready racer. This high-performance machine cranks everything up a notch, starting with the familiar 4.0-liter, mid-mounted, naturally aspirated flat-six engine derived from the 911 GT3. But in the Clubsport, this...

VIDEO: Drifting The Porsche Cayman GT4 RS Up The Mountains

The Porsche 911 stands alone among supercars, and for many enthusiasts, this is a key factor in its enduring appeal. However, with the GT4 RS, Porsche aimed to elevate the Cayman from its role as a subordinate to the 911. Positioned as the pinnacle within the 718 Cayman lineup, the...

VIDEO: Is The GT4 RS Faster Than The 911 GT3 In A Drag Race?

Whenever Porsche introduces a GT version of one of their vehicles, you can expect them to be really special. But just how impressive are the two top Porsche GT models you can buy today? And how do they stack up against each other? Carwow on YouTube attempts to answer these...

VIDEO: The Porsche 718 Cayman GT4 RS Is Definitely One Of The Loudest Cars You Can Buy Today

The Porsche 911 stands alone among supercars, and for many enthusiasts, this is a key factor in its enduring appeal. However, with the GT4 RS, Porsche aimed to elevate the Cayman from its role as a subordinate to the 911. Positioned as the pinnacle within the 718 Cayman lineup, the...

Porsche of the Day

Porsche Of The Day: 2023 Porsche 718 Cayman GT4 RS Weissach

2023 Porsche 718 Cayman GT4 RS Weissach

The new Cayman 718 GT4 RS, according to Porsche themselves at least, is not meant to be a track monster. This beast is meant to be an “experience,” a car that makes the driver become part of the machine, the two symbiotically working together to scream bloody murder out those nearly...

VIDEO: This Is How You Should Enjoy Your GT4 RS

The Porsche 718 Cayman GT4 RS has been designed for maximum driving pleasure. It stands as the pinnacle of the 718 Cayman lineup, delivering a raw, loud, and brutally powerful driving experience. The GT4 RS isn’t just an evolution of the GT4; it shares a 4.0-liter engine with its sibling but receives...

Porsche and TAG Heuer pay tribute to the Carrera Panamericana

Based on the 718 Cayman GT4 RS, two exceptional cars have been made in collaboration with Porsche Latin America. The car with racing number 154 is celebrating its premiere this weekend at Rennsport Reunion 7, the big fan meet-up at the Weathertech Raceway Laguna Seca in California. 70 years ago,...

The All-New Porsche’s 718 Cayman GT4 RS

Is the Porsche 718 Cayman GT4 RS the “purist” sports car from Porsche? With the incorporation of the GT3 engine, innovative aerodynamics, and race-grade suspension, it meets every purist’s dream—though sans the manual transmission. However, the moment its starter whirs, the profound roar from its 4.0-liter naturally aspirated flat-six engine...

VIDEO: Four Porsches With The Same 4-Liter Naturally Aspirated Flat-Six Drag Race Each Other

Four Porsches With The Same 4-Liter Naturally Aspirated Flat-Six Drag Race Each Other

Carwow continues to provide us with fun and interesting drag racing videos and this one featuring four high-performance Porsche models: the 911 GT3, 911 GT3 RS, 718 Cayman GT4, and 718 Cayman GT4 RS, is no exception. It’s worth mentioning though that all these cars represent Porsche’s highest performance models...

VIDEO: Daily Driving A Porsche 718 Cayman GT4 RS

The GT4 RS stands as the pinnacle of the 718 Cayman lineup, delivering a raw, loud, and brutally powerful driving experience. The Porsche 718 Cayman GT4 RS isn’t just an evolution of the GT4; it shares a 4.0-liter engine with its sibling but receives the unit from the latest 911...

VIDEO: The 2023 Porsche 718 Cayman GT4 RS Is Completely Brutal

The Porsche 718 Cayman GT4 RS has been designed for maximum driving pleasure. Porsche let the GT department, their skunkworks team, at Stuttgart go slightly (read: completely) insane. The result is a $145,000 USD Porsche Cayman that carries a 4.0L flat-six engine that makes 493 hp and 331 lb-ft of...

Porsche releases Manthey performance kit for the 718 Cayman GT4 RS

Optimized for maximum performance on the track A Porsche Cayman GT4 RS with the new Manthey Kit completed a lap at the Nordschleife circuit at the Nürburgring in 7:03.121 minutes. This makes it exactly 6.179 seconds faster than the 718 Cayman GT4 RS without the upgrade kit. The modifications focus...

VIDEO: Manthey Racing’s Porsche 718 Cayman GT4 RS Completes A Lap Around Nürburging In 7:03.21

If you want to make your Porsche 718 Cayman GT4 RS a better track machine, Manthey Racing has a kit for you. This kit will make a 718 Cayman GT4 RS one second slower than the iconic 918 Spyder around Nürburging. Driven by Porsche factory driver Jörg Bergmeister, the GT4...

VIDEO: Shmee150 Drives A Porsche 718 Cayman GT4 RS Around A Racetrack

The 2022 718 Cayman GT4 RS is the most thrilling Cayman model to date. Powered by the same impressive flat-six engine found in the 911 GT3, it boasts a 4.0-liter unit delivering 493 horsepower and 331 lb-ft of torque. With a 0-62 mph time of 3.9 seconds and a top...

VIDEO: Porsche 911 GT3 vs Cayman GT4 RS: Which Is Faster On The Race Track?

Mat Watson and racing driver Sam have embarked on an exciting journey, driving a Porsche 911 GT3 and a Porsche Cayman GT4 RS all the way from the UK to Spa Francorchamps. Their mission is to thoroughly test these track-focused Porsches and push them to their limits. Both of these...

VIDEO: Porsche 718 GT4 RS Flat Out On Road America

The Porsche 718 Cayman GT4 RS is equipped with the same scintillating flat-six engine that powers the 911 GT3. It’s a 4.0-liter unit that makes 493 hp and 331 lb-ft of torque in the GT4 RS. Porschephiles will notice that those figures are not quite as high as in the...

VIDEO: Porsche 992 GT3 RS vs Cayman GT4 RS: Which Is The Ultimate Road Car?

For years, the Porsche Cayman GT4 has established itself as an exceptional sports car, offering incredible performance for those willing to invest. However, it has often lived in the shadow of the recently introduced 911 GT3 RS. With the introduction of the new Cayman GT4 RS, equipped with a powerful...

VIDEO: Henry Catchpole Drives Porsche Cayman GT4 RS On The Fabled ‘Tail Of The Dragon’

Located in Tennessee, the “Tail of the Dragon” is a renowned 11-mile (18 km) road section known for its remarkable 318 curves. This iconic road earned its name due to the resemblance of its winding path to that of a dragon. As a result of its exhilarating twists and turns,...

VIDEO: Fabspeed Can Make Your New Porsche Cayman GT4 RS Sound Better

Upgrade your new Porsche Cayman GT4 RS exhaust system with Over Axles from Fabspeed and experience increased power, weight savings, and a more aggressive sound. Check out the video below for complete sound comparison!...

VIDEO: Fifth Gear Presents Porsche Cayman GT4 RS vs McLaren 650S Spider Shoot Out

Today’s automotive market is filled with lots of quick and high-performance cars such as the Porsche Cayman 718 GT4 RS from Germany and the McLaren 650S Spider from the United Kingdom. When we compare these two vehicles, one significant difference stands out – their power. The Cayman 718 GT4 RS...

Porsche of the Day

Porsche Of The Day: PTS Gulf Orange 2023 Porsche 718 Cayman GT4 RS

The new Cayman 718 GT4 RS, according to Porsche themselves at least, is not meant to be a track monster. It certainly can be, and there is a customer-spec version of the GT4 race car coming in the GT4 RS Clubsport, dedicated to track only use. This beast is meant...

Porsche of the Day

Porsche Of The Day: Peru Red Porsche 718 Cayman GT4 RS

The new Cayman 718 GT4 RS, according to Porsche themselves at least, is not meant to be a track monster. It certainly can be, and there is a customer-spec version of the GT4 race car coming in the GT4 RS Clubsport, dedicated to track only use. This beast is meant...

VIDEO: This 2023 Porsche Cayman 718 GT4 RS MR Is Definitely Loud

Watch this loud 2023 Porsche Cayman 718 GT4 RS MR as it do some test runs around Zolder Circuit in Belgium....

VIDEO: 2022 Porsche 718 Cayman GT4 RS POV Drive Review

2022 Porsche 718 Cayman GT4 RS POV Drive Review

The Porsche 718 family recently welcomed a new flagship model, the Porsche 718 Cayman GT4 RS which has been designed for maximum driving pleasure. Porsche let the GT department, their skunkworks team, at Stuttgart go slightly insane. The result is a $145,000 USD Porsche Cayman that carries a 4.0L flat-six...

VIDEO: Even a brand new Porsche GT4RS needs a full detail

Make no mistake, even when you’ve just picked up your brand new Porsche GT4RS from the dealership, the car isn’t clean. Sure she might look clean at first sight, but nothing like a full in-depth detail will make her look, in the video below we take a look at the...

VIDEO: Cruising On A Canyon Inside A 2023 Porsche 718 Cayman GT4 RS

Winding Road Magazine presents you this onboard footage a 2023 Porsche 718 Cayman GT4 RS going full blast for a drive in a canyon. Enjoy it and don’t forget to wear your headphones for maximum audio experience!...

FOR SALE: Super Low Mileage 2022 Porsche 718 Cayman GT4 RS

Collecting Cars is proud to present a low mileage example of a 2022 Porsche 718 Cayman GT4 RS that also comes with the optional Weissach Package. This car is finished in the ever gorgeous Racing Yellow paintwork while sporting a black leather interior inside with grey Race-Tex seat inserts, white...

VIDEO: Porsche 911 GT3 RS Vs. Cayman GT4 RS

Top Gear pits two incredible Porsche machines against each other to see which comes out on top, the Porsche 911 GT3 RS or the Cayman GT4 RS?...

VIDEO: Porsche 718 Cayman GT4 RS Vs. 911 GT3

It is time to see if the Porsche 718 Cayman GT4 RS can finally go up against the 911 GT3....

VIDEO: 2022 Porsche Cayman GT4 RS Review

It is Road and Track’s Matt Farrah’s turn to take the 2022 Porsche Cayman GT4 RS for 3 laps at the Monticello Motor Club....

Porsche of the Day

Porsche Of The Day: 2022 Porsche 718 Cayman GT4 RS

Porsche Of The Day: 2022 Porsche 718 Cayman GT4 RS

The Porsche 718 family recently welcomed a new flagship model, the Porsche 718 Cayman GT4 RS which has been designed for maximum driving pleasure. Porsche let the GT department, their skunkworks team, at Stuttgart go slightly (read: completely) insane. The result is a $145,000 USD Porsche Cayman that carries a...

VIDEO: Porsche Cayman GT4 RS Review

Harry of Harry’s Garage does a walk around, interior, and test drive review of the new Porsche Cayman GT4 RS....

VIDEO: Porsche Cayman GT4 RS At Speed Week 2022

Porsche Cayman GT4 RS is one of the many amazing cars that are vying for the title of ultimate performance car of 2022 on Speed Week. https://www.youtube.com/watch?v=L44Vf8J-XNU&t=68s...

VIDEO: Porsche GT4 RS At Nurburgring

Watch James as he takes the Porsche GT4 RS flat out at Nurburgring equipped with the Michelin CUP 3 R sticky tires....

Specs & Performance

Porsche 718 Cayman GT4 RS (2023) – Specifications & Performance

2023 Porsche 718 Cayman GT4 RS Technical Specifications The 718 Cayman GT4 RS is powered by a naturally aspirated flat-six engine, and delivers a power output of 500PS at high 9000 rpm revs. Compared to the 718 Cayman GT4, the new model has an extra power of 80 PS and...

VIDEO: Porsche GT4 RS Vs. 992 GT3

Join Mark as he takes the Porsche GT4 RS and the 992 GT3 for a spin around the Italian Mountains to see which of the awesome cars would come out on top....

Specs & Performance

Porsche 718 Cayman GT4 RS Clubsport (2023) – Specifications & Performance

2023 Porsche 718 Cayman GT4 RS Technical Specifications The most significant change is the 4.0 litre six-cylinder boxer engine. This high-revving powerplant has been taken directly from the 911 GT3 Cup race car and develops 500 PS in the 718 Cayman GT4 RS Clubsport – 75 PS more than the...

VIDEO: Greatest Cars Of 2022 Including Cayman GT4 RS At Speed Week

A petrolhead’s most awaited week of the year is here with Top Gear Magazine’s Speed Week 2022. This video introduces the contenders for 2022, which aside from the Porsche Cayman GT4 RS includes the Aston Martin DBX, Morgan Super 3, Audi RS3, and the BMW M4 CSL....

VIDEO: Best Porsche Ever? Cayman GT4 RS, 911 GT3, or 911 GT3RS

GT4 RS vs GT3 vs GT3RS When the opportunity arises to put the Porsche Cayman GT4 RS with the 991.2 GT3RS and the 992 GT3, the right response is “Where do I meet you?”. On our most recent trip to Europe, we had this opportunity thanks to our friends at...

VIDEO: 718 GT4 RS at Zandvoort F1 Track REVIEW by AutoTopNL

PORSCHE 718 GT4 RS at Zandvoort F1 Track REVIEW by AutoTopNL

The last hurray for the combustion engine – and boy it’s beautiful!...

VIDEO: Porsche Cayman GT4 RS vs Mercedes AMG SLS Black Series and BMW M3 GTS

Iconic Car Showdown The new Porsche 718 Cayman GT4 RS is a spectacularly good driver’s car. That much we know. With 493bhp from 4.0-litres, quite a lot of the experience is about its engine. It’ll do 0-62mph in 3.4sec and has a 196mph top speed. New rivals are rare. So, the...

VIDEO: Sports Car Giant Test 2022 – Ferrari vs Porsche vs McLaren & more

Sports Car Giant Test 2022

CAR magazine Picks Its Sports Car of the Year What happens when you bring together over 3,000bhp and £1 million worth of 2022’s finest performance cars? You get another brilliant CAR magazine Sports Car Giant Test. Will Ferrari’s super hi-tech 296 GTB take the win, or will the Batmobile-in-disguise 765LT...

VIDEO: 2022 Porsche 718 Cayman GT4 RS vs 911 (992) GT3

2022 Porsche 718 Cayman GT4 RS vs 911 (992) GT3

The Ultimate Match-Up – GT3 vs GT4 RS The Porsche Cayman GT4 has been one of the best sports cars money can buy for years – yet it has remained steadfastly in the shadow of the more powerful 911 GT3. Now, in 2022, can the new run-out RS version, finally equipped...

VIDEO: BEST PORSCHE EVER! 2022 Porsche Cayman GT4 RS Review

2022 Porsche Cayman GT4 RS

Porsche Cayman GT4 RS Review The GT4 RS is equipped with the same scintillating flat-six engine that powers the 992 GT3. It’s a 4.0-liter unit that makes 493 hp and 331 lb-ft of torque in the GT4 RS. Porschephiles will notice that those figures are not quite as high as...

VIDEO: Porsche GT4 RS vs GT3 RS

GT3 Vs GT4 RS

A Drive That Dreams Are Made Of...

VIDEO: Porsche 718 GT4 RS Weissach Review

PORSCHE 718 GT4 RS WEISSACH | REVIEW on AUTOBAHN by AutoTopNL

A razor-sharp track tool. A highly agile mid-engine concept with 4.0-litre displacement and a six-cylinder naturally aspirated engine. These are all the things that have been said about the epic 718 GT4 RS. It is no surprise then that every 718 GT4 RS video review in recent months has been...

VIDEO: Coffee Run in a Porsche GT4 RS

VIDEO: Coffee Run in a Porsche GT4 RS

This is What Peak Porsche Feels Like Porsche Switzerland lends Luke a brand new GT4 RS for a long stint and he does the right thing and immediately takes it out for a quick coffee run. We have always been fans of Luke’s videos because he drives them hard and...

VIDEO: How Fast (& Fun) Is the Porsche 718 GT4 RS?

Acceleration & Top Speed Runs As Well As Drifting. Doesn’t Get Better Than This....

VIDEO: Porsche 718 Cayman GT4 RS – Nordschleife & Hockenheimring Hot Laps

Porsche 718 Cayman GT4 RS - Nordschleife & Hockenheimring Hot Laps

Just Turn Up the Volume The only thing that went through my mind during this entire video was, “Why oh why can’t I get my hands on an allocation for the Cayman GT4 RS”. We have already seen a lot of GT4 RS video reviews and they’re all well-produced and...

VIDEO: 2022 Porsche Cayman GT4 RS Review

Throttle House In Depth Cayman GT4 RS Review The 2022 Porsche 718 Cayman GT4 RS is nothing short of special. Special not only in terms of availability, but special in the sense of occasion it aims to provide you with as the driver. A nine-thousand rpm redline is at the...

VIDEO: Which Is Better? GT3 vs Cayman GT4 RS

Is The Cayman GT4 RS Better Than the Current 911 GT3?

Is The New Cayman GT4 RS Better Than the Current 911 GT3? The Porsche Cayman GT4 RS is the one we’ve been waiting for. No more less-special engines. No more hamstrung long gears. With the *actual* 4-liter engine from the GT3, a gearbox featuring strengthened hardware and shorter gear ratios,...

VIDEO: Porsche GT4 RS Road & Track Review

Porsche GT4 RS Road & Track Review

The Cayman GT4 RS Is The Best Car on the Planet. Find Out Why How do you improve on the already epic GT4? Easy: Naturally Aspirated GT3 engine. 500BHP. In a mid-engine perfect Porsche. God my mind is blown. That engine comes from the 911 GT3 Cup racing car and the...

VIDEO: The Porsche Cayman GT4 RS Is A Once in a Generation Experience

We do a complete first look and drive on the new Porsche Cayman 718 GT4RS that covers all of the engineering, design, and much more. This is likely going to be a classic car in 20 years, this is the peak of naturally aspirated engine technology. If you are in...

VIDEO: NEW Porsche 718 Cayman GT4 RS – Worth The Hype?

Rory reviews the hotly-anticipated Cayman GT4 RS Rory reviews the hotly-anticipated Cayman GT4 RS, the ultimate evolution of the Cayman. It uses the awesome 4-litre naturally aspirated flat six from the now-legendary 911 GT3, makes 500hp and delivers a noise scarcely heard in the modern era. But is it worth...

VIDEO: Carfection Reviews the Cayman GT4 RS

Carfection Reviews the Cayman GT4 RS

Porsche has taken the engine from the 992 911 GT3 and crammed it into the Cayman GT4 RS. The results are spectacular! While the GT4 RS is built for the track, Henry Catchpole conducts a real world 1,700 mile road test review through Europe to see if this is one...

VIDEO: Porsche 718 Cayman GT4 RS: “The best car I’ve ever driven”

Porsche 718 Cayman GT4 RS Video Review

Porsche 718 Cayman GT4 RS Video Review Can the new Porsche 718 Cayman GT4 RS really be the best driver’s car money can buy? Our man Steve Sutcliffe thinks it is as he puts it through its paces on road and on track. Squeezing the 4.0-litre naturally-aspirated flat-six and seven-speed...

VIDEO: Top Gear Tests the 2022 Porsche Cayman GT4 RS

2022 porsche cayman gt4 rs

The crew from Top Gear just dropped their review of the all-new Cayman GT4 RS. With a 4.0L flat-six straight out of a 911 under the hood, you can probably guess what this one ‘s like to drive… Check out Top Gear’s video:...

VIDEO: 2022 Porsche Cayman GT4 RS on Track (Yes, Really!!!)

Our review of the new Porsche Cayman GT4 RS, the one with the full-on GT3 motor, all the good aerobits, and lots of weight reduction has to stay on the shelf until March 22nd, 2022. That’s because of something called a “driving impression embargo,” where we all agree not to...

Porsche Pictures

Porsche Cayman GT4 RS Clubsport (2022 – Present) – Pictures & Gallery

Porsche Cayman GT4 RS Clubsport (2022 – Present) Pictures ...

Specs & Performance

Porsche 718 Cayman GT4 RS Clubsport (2022) – Specifications & Performance

2022 Porsche 718 Cayman GT4 RS Technical Specifications The most significant change is the 4.0 litre six-cylinder boxer engine. This high-revving powerplant has been taken directly from the 911 GT3 Cup race car and develops 500 PS in the 718 Cayman GT4 RS Clubsport – 75 PS more than the...

Porsche 718 Cayman GT4 RS Clubsport (2022 – Present)

The most significant change is the 4.0 litre six-cylinder boxer engine. This high-revving powerplant has been taken directly from the 911 GT3 Cup race car and develops 500 PS in the 718 Cayman GT4 RS Clubsport – 75 PS more than the previous GT4 Clubsport model. In addition to many upgraded details, the focus in developing the new 718 Cayman GT4 RS Clubsport was on further improving overall performance. The standard 7-speed dual-clutch transmission (PDK) fitted to the car now uses all seven forward gears, rather than six.

Specs & Performance

Porsche 718 Cayman GT4 RS (2022) – Specifications & Performance

2022 Porsche 718 Cayman GT4 RS Technical Specifications The 718 Cayman GT4 RS is powered by a naturally aspirated flat-six engine, and delivers a power output of 500PS at high 9000 rpm revs. Compared to the 718 Cayman GT4, the new model has an extra power of 80 PS and...

Porsche Pictures

Porsche Cayman GT4 RS (2022 – Present) – Pictures & Gallery

Porsche Cayman GT4 RS (2022 – Present) Pictures ...

Porsche 718 Cayman GT4 RS (2022 – Present)

New for 2022 is the most exciting Cayman ever, the 718 Cayman GT4 RS. The GT4 RS is equipped with the same scintillating flat-six engine that powers the 911 GT3. It's a 4.0-liter unit that makes 493 hp and 331 lb-ft of torque in the GT4 RS. Porschephiles will notice that those figures are not quite as high as in the 911 GT3, which packs 502 hp and 346 lb-ft. Big numbers for a small, lightweight car. It is only available with a seven-speed dual-clutch to optimize lap times further. Nobody has driven it yet from the motoring public, but we eagerly await that day and will report back here.

VIDEO: 2021 Porsche 718 Cayman GT4 RS Spied Testing

Porsche had a smash hit with the 2019 718 Cayman GT4. 414 HP from a 4.0-liter boxer 6, a decently affordable price, and a top speed that comes close to its bigger 911 brothers. Now, however, EVO Magazine has spotted an even more hardcore version of the GT4 coming, the...

Porsche Cayman GT4 RS Spied, Some Specs Revealed

There is a track drivers dream currently from Porsche in the 718 Cayman GT4. It has been known for a little while that a more hardcore version was coming. Now, as reported by CarBuzz, the upcoming 718 Cayman GT4 RS has broken cover and some juicy specs have been revealed....