Porsche has made a significant stride in the world of customer motorsport with the introduction of the new 911 GT4 R. This marks the first time a car designed for global GT4 racing is based on the legendary 911 platform. The race car is powered by a 4.0-liter six-cylinder boxer engine that delivers up to 520 PS (382 kW) setting the stage for its highly anticipated debut in the 2027 motorsport season.
The 911 GT4 R is poised to make waves in prestigious championships such as the IMSA Michelin Pilot Challenge and SRO Pirelli GT4 America showcasing Porsche’s commitment to high-performance racing. Priced at $375,500 including import and delivery to the United States, this new model is set to become a cornerstone in Porsche’s customer motorsport portfolio.
The evolution of Porsche’s GT4 program
Building on the technical foundation of the current 911 Cup which is based on the road-legal Type 992.2 911 GT3 the 911 GT4 R offers several advancements over previous Clubsport models. These include a more powerful engine, wider front and rear track widths, and further-developed motorsport electronics. These enhancements are designed to improve lap times, drivability, and stability in racing conditions.
Thomas Laudenbach Vice President of Porsche Motorsport, emphasized the significance of this new model: “With the new race car based on the Porsche 911 GT3, we are taking our successful GT4 program to a new level. The combination of iconic 911 DNA and the tried-and-tested GT4 concept creates a unique offering in the market.”
The decision to bring the 911 platform into the GT4 category underscores the growing importance of this class in international motorsport. GT4 has evolved from an entry-level segment into a highly competitive, globally relevant racing platform.
Technical specifications and performance
The high-revving 4.0-liter six-cylinder boxer engine, derived from the 911 GT3, delivers up to 520 PS (382 kW) in the racing version. Maximum torque reaches up to 346 lb.-ft. Under GT4 regulations, performance figures vary depending on the Balance of Performance (BoP) classification. The 911 GT4 R is delivered from the factory with air flow restrictors (53.7 millimeters), which reduce power to 430 PS (316 kW).
Power is transmitted via a sequential six-speed dog-gearbox controlled with paddle shifters and a four-disc racing clutch. The chassis of the 911 GT4 R differs from the 911 Cup due to GT4 class requirements. The wheels are one inch narrower and use a five-bolt mounting pattern instead of the center locking design on the one-make racer it is closely related to. Dual-adjustable dampers and three selectable spring rates offer a range of set-up options.
The bodywork of the 911 GT4 R adopts key structures from the 911 Cup and utilizes natural-fiber-reinforced plastic in combination with epoxy resin extensively. Components such as the doors, engine cover, aerodynamic parts, and parts of the cockpit are made from this material. The rear wing is manually adjustable to 11 positions, enhancing aerodynamic flexibility.
The future of GT4 racing
The GT4 category, introduced in the mid-2000s, has become a well-established competitive format worldwide. It combines production-based technology with comparatively moderate running costs. Since entering the GT4 category in 2016, Porsche has developed and produced more than 1,500 racing cars based on the Cayman.
North American teams and drivers have achieved remarkable success, earning a robust 12 driver championships in various competitions. The new 911 GT4 R continues this success story, expanding the range to include a car based on the iconic 911 series. Drivers can now use a variation of the Porsche 911 to participate in various championships, from the Porsche Sprint Trophy PCA to the IMSA WeatherTech SportsCar Championship in GT3 competition.
Matthias Scholz Director GT Racing Cars at Porsche Motorsport, highlighted the car’s potential: “The 911 embodies Porsche’s motorsport DNA like no other car. Transferring this to a GT4 car opens up new possibilities in terms of performance and driving experience.”
The 911 GT4 R benefits from the detailed work already carried out during the development of the 911 Cup, ensuring a high level of performance and reliability. As Porsche continues to innovate and expand its motorsport offerings, the 911 GT4 R is poised to become a dominant force in the global GT4 racing scene.
