Porsche is giving its customer motorsport ladder a major shakeup with the introduction of the new 911 GT4 R, marking the first time the brand has built a global GT4 race car around the legendary 911 platform. Scheduled to make its competition debut in the 2027 motorsport season, the new GT4 contender arrives with a serious mission: give customer teams a faster, more familiar, and more scalable path from Porsche one-make racing into open GT4 competition.

At the heart of the 911 GT4 R is a high-revving 4.0-liter six-cylinder boxer engine derived from the 911 Cup and based on the unit found in the 911 GT3. In its racing configuration, it produces up to 520 PS, or 382 kW, along with up to 346 lb-ft of torque. As with other GT4 cars, final output will depend on Balance of Performance regulations, and Porsche says the car is delivered from the factory with 53.7-millimeter air restrictors that bring output to 430 PS. Power is sent through a sequential six-speed dog-ring gearbox with paddle shifters and a four-disc racing clutch.

What makes this move especially interesting is the switch from Porsche’s Cayman-based GT4 formula to the 911. Porsche has built more than 1,500 Cayman-based GT4 race cars since entering the category in 2016, proving just how important the class has become for customer racing. The new 911 GT4 R is designed to keep that momentum going while giving teams a platform that shares more DNA with Porsche’s broader 911-based racing ladder, from Sprint Trophy and Carrera Cup programs to GT4 and eventually GT3 competition.

The chassis borrows from the current 911 Cup, which itself is based on the Type 992.2 911 GT3, but Porsche has tailored the GT4 R for class requirements. Compared with the Cup car, the GT4 R uses narrower wheels and a five-bolt mounting pattern instead of center-lock wheels. Dual-adjustable dampers and three selectable spring rates give teams room to tune the car for different circuits and driver preferences, while its wider track, improved electronics, and refined suspension package are all aimed at making the car quicker, more stable, and more approachable over long race stints.

Porsche also leaned into practical race car engineering with the body and cockpit. The 911 GT4 R uses natural-fiber-reinforced plastic and epoxy resin for components such as the doors, engine cover, aerodynamic pieces, and parts of the cockpit. The rear wing is manually adjustable across 11 positions, while the driver gets a 10.3-inch color display, integrated data logger, and precise GPS system for race analysis. Additional ballast provisions allow teams to meet Balance of Performance weight requirements, which is a critical detail in GT4 racing where consistency and adaptability matter as much as outright pace.

In North America, the new 911 GT4 R is expected to compete in series such as IMSA Michelin Pilot Challenge and SRO Pirelli GT4 America, two arenas where Porsche customer teams have already built a strong record. Priced at $375,500 including import and delivery to the United States, the 911 GT4 R is not simply a replacement for the Cayman-based GT4 cars. It is a clear signal that Porsche sees GT4 as a global battleground worth serious investment, and bringing the 911 into the class gives customer racers a more direct connection to the brand’s most recognizable sports car.