Porsche Cayman GT4 vs 911 GT3 RS: The Fight For First Place

Just a few months ago, Porsche unveiled a whole host of GTS models. These more dynamic, high-performance versions were added to the 911, Cayman, Cayenne, Panamera and Boxster families. In Porsche’s hierarchy, models whose name includes the “GT plus a number” moniker represent the summit of sport driving, which is why so many motorsport buffs have been drooling over the legendary 911 GT3.

At this year’s Geneva Motor Show, Porsche decided to shake things up by unveiling the Cayman GT4, a first for this model. The coupe was modified for improved performance and speed, allowing sport drivers to take advantage of its outstanding platform.

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When the veil came off this model on press day, the enthusiasm was palpable among the thousands of people who had assembled in the huge amphitheater near Cornavin Station, just outside downtown Geneva. Word among the crowd was that this new machine is equipped with a flat-six derived from the 911 Carrera S engine.

This came as a surprise to the brand’s followers, as it suggested that the Cayman might infringe on 911 territory with an engine that is almost as powerful as the ones in the Carrera S and Carrera S4. This juiced up Cayman had instantly becomes a serious rival for the 911 GT3, which until now was Porsche’s uncontested performance queen. We were all left wondering about the reasoning behind this decision. The answer would come the next day… 

Automatically better

Until now, the Cayman had had a hard time getting the recognition it deserved among sport drivers. As a coupe version of the Boxster, it has great performance and handling qualities, but it has nonetheless always kowtowed to the more powerful and prestigious 911. The GT4, however, is going to give the Cayman’s reputation a badly needed shot in the arm.

The most interesting aspect of this vehicle is the 3.8-litre flat-six, which is derived from the 911 Carrera S block. It produces 385 horsepower and is mated to a six-speed manual transmission. With all these ponies, the GT4 can blast from 0 to 100 km/h in 4.4 seconds and reach a top speed of 295 km/h. According to the manufacturer, its fuel consumption averages 10 L/100 km. In creating this beast, the engineers lowered the chassis by 30 mm. The braking system uses 911 GT3 parts almost exclusively.

A major effort was made to improve aerodynamics and ensure good air flow to the mid-engine. That’s why there are three big air intakes up front and a massive wing in back, ensuring optimal aerodynamics and downforce. True to Porsche tradition, the options catalogue is very long. The options include Porsche ceramic composite brakes, carbon fibre reinforced polymer bucket seats, and the Sport Chrono Package with the Track Precision application. However, it comes factory-standard with leather and alcantara seats offering excellent side bolstering. Finally, due to its smaller size, the new sport steering wheel for the GT4 guarantees optimal handling and immediate responses.

Once again, this esteemed German automaker has succeeded in producing an exceptional model using parts that have already proven their worth on the track.

But what about our concern for the GT3’s future in light of this almost-direct competitor? We got our answer the next day when Porsche unveiled the new GT3 RS. What else did we expect for the queen?

911 GT3: Still the one to watch 

When Porsche decided to build a beefed-up Cayman, they did so because they had plans for the legendary GT3. Major updates were made to its engine and aerodynamics, while lighter construction also contributed to better performance for the 911 GT3. This new version is powered by a 4.0-litre six-cylinder engine that pumps out 500 horsepower—which is 25 more than before. It’s paired with a seven-speed dual-clutch PDK. It’s the most powerful naturally aspirated direct-injection engine in the 911 family and offers the most displacement. The GT3 can sprint to 100 km/h in 3.3 seconds or even dart from 0 to 200 km/h in 10.9 seconds. While most GT3 drivers won’t be overly concerned about fuel consumption, it’s still important to note that it will drink up 12.7 L/100 km. Race drivers will love some of the features, like "neutral paddle" de-clutching (which is like depressing the clutch in a conventional gearbox) or “pit speed” to limit speed. Keep in mind that even though this car is street legal, it was built for the race track.

To make the most of this added power, Porsche’s engineers made an effort to reduce the vehicle’s weight. This explains the magnesium roof, front fenders and front hood, as well as the carbon fibre engine cover and other parts made from light materials. The RS model weighs a mere 1,420 kg, which is 10 kg less than the 911 GT3. What’s more, the lightweight roof lowers the car’s centre of gravity, making the ride more dynamic. The 911 Turbo inspired body style emphasizes the sport calling of this vehicle—particularly the exclusive RS parts for enhancing aerodynamics. The front fascia stretches almost to ground level while the large rear wing adds to the car’s overall size. If you look carefully, you’ll notice there’s a 30 centimetre-wide ridge running the length of the front hood and roof. You should also keep an eye out for the air vents in the front wheel wells that lead up to the upper portion of the fenders (just like on race cars) and enhance the front axle’s downforce.

The 911 GT3 RS also comes with rear-wheel drive. Torque Vectoring Plus with electronically regulated rear differential lock and infinitely variable torque distribution makes the vehicle more dynamic. Meanwhile the larger track of the front and rear axles translates into even less body roll than the 911 GT3. The 911 GT3 RS comes factory standard with the widest tires in the 911 line-up.

Inside, both driver and passenger get carbon fibre bucket seats—the same ones as in the 918 Spyder. In keeping with this model’s race car aspirations, there’s a roll cage screwed in place behind the front seats. Not to mention the preparation for a battery master switch, six-point harness for the driver and fire extinguisher. The Sport Chrono option includes an integrated stopwatch and the Porsche Track Precision app for your smart phone. This app uses GPS to calculate your lap time and record, manage, share or compare various parameters with other drivers, including speed, lateral acceleration, braking and acceleration handling, etc. What more could you ask for?

The price for this dazzling piece of work has already been released. This legend will set you back $200,700.