2027 Porsche 911 GT4 R Revealed as Brand's New GT4 Race Car With 512 HP
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The 2027 Porsche 911 GT4 R is here, replacing the Cayman based GT4 race car with a more powerful 911 platform. The new race car produces 512 horsepower from a naturally aspirated flat six engine and will make its racing debut in 2027.

Porsche Introduces the New 2027 911 GT4 R
Porsche has officially revealed the new 2027 Porsche 911 GT4 R, marking a major change for its GT4 racing program. Since 2016, Porsche has competed in the GT4 category using race cars based on the Cayman. That chapter is now ending, with the iconic 911 becoming the new foundation for Porsche’s GT4 customer race car.
The move comes after Porsche ended production of the combustion powered Cayman and Boxster, making the 911 the natural choice for future GT4 competition.
Powered by the 911 Cup Race Engine
The biggest highlight of the new 911 GT4 R is its engine.
Porsche has fitted the race car with the same 4.0 litre naturally aspirated six cylinder boxer engine used in the 911 Cup race car. The engine produces:
| Specification | Details |
|---|---|
| Engine | 4.0 litre flat six boxer |
| Power | 512 horsepower |
| Torque | 362 lb ft |
| Transmission | Six speed sequential gearbox |
| Shifting | Paddle shifters |
The drivetrain has been designed specifically for endurance racing and customer motorsport programs.
Built on the 911 Cup Platform
Although the GT4 R shares its technical foundation with the 911 Cup race car, Porsche has made several changes to suit GT4 regulations.
Some of the key differences include:
- Wheels are one inch narrower than the 911 Cup.
- The GT4 R uses a five bolt wheel mounting pattern instead of the center lock setup found on the Cup car.
- The rear wing offers 11 adjustment positions for different track conditions.
- Teams can choose from three spring rate options.
- The suspension features dual adjustable dampers.
These changes allow teams to fine tune the car for different championships and circuits.
Race Focused Interior
Inside, the 2027 Porsche 911 GT4 R is built entirely around racing.
Drivers get:
- 10.3 inch full color display
- Integrated data logger
- Built in GPS system
- Motorsport focused cockpit layout
Everything has been designed to provide drivers with useful performance data during race weekends.
Price and Racing Debut
Porsche has priced the new 911 GT4 R at $375,500 in the United States. That figure includes import and delivery costs.
The new race car is expected to begin competing in 2027, with entries planned for:
- IMSA Michelin Pilot Challenge
- SRO Pirelli GT4 America Championship
These series are among the most popular GT4 championships in North America.
Porsche Explains the Switch to the 911
According to Volker Holzmeyer, President and CEO of Porsche Motorsport North America, expanding the 911 platform into GT4 racing creates a smoother path for drivers moving up through Porsche’s racing ladder.
He said the shared platform between the 911 Cup and the GT4 R will make it easier for teams and drivers to transition from Porsche one make championships into GT4 competition while using similar technology and race cars.
What This Means for Porsche Motorsport
Over the past decade, Porsche has produced more than 1,500 Cayman based GT4 race cars, making it one of the most successful customer racing programs in the world.
The introduction of the 911 GT4 R opens a new chapter. Since Porsche no longer builds combustion powered Cayman and Boxster models, the 911 now becomes the company’s primary platform for customer GT racing.
It also raises an interesting question. Porsche may eventually introduce a road legal 911 GT4 model, similar to what it previously offered with the Cayman GT4. While the company has not confirmed such a car, the new race car certainly makes the possibility more interesting.
Final Thoughts
The 2027 Porsche 911 GT4 R represents a significant step forward for Porsche’s customer racing program. With a proven 512 horsepower flat six engine, race developed chassis, adjustable aerodynamics, and direct links to the successful 911 Cup platform, it is designed to help teams compete at the highest level of GT4 racing.
The new GT4 R will make its competitive debut in 2027, and many motorsport fans will be eager to see how the 911 performs as Porsche’s latest GT4 race car.
Sources and References
Official Sources
Porsche Newsroom (Official Press Releases)
https://newsroom.porsche.com/en.html
Official Porsche media portal with press releases, specifications, high resolution images, and motorsport news.
Porsche USA
https://www.porsche.com/usa/
Official Porsche USA website featuring model information, customer racing updates, and brand news.
Trusted Automotive Sources
Motor1
https://www.motor1.com/
One of the most trusted automotive news websites covering new vehicle launches, reviews, and motorsport.
Car and Driver
https://www.caranddriver.com/
Leading US automotive publication known for detailed reviews, testing, and industry news.
Road & Track
https://www.roadandtrack.com/
Well known for performance cars, racing coverage, and in depth automotive stories.
MotorTrend
https://www.motortrend.com/
Trusted source for new car news, first looks, comparisons, and performance testing.
The Drive
https://www.thedrive.com/
US based automotive publication covering motorsports, engineering, and industry news.
Grassroots Motorsports
https://grassrootsmotorsports.com/
Respected source for amateur and professional motorsport coverage, including GT racing.
Racecar Engineering
https://www.racecar-engineering.com/
Technical coverage of race cars, engineering, and professional motorsport developments.
IMSA Official
https://www.imsa.com/
Official website for the IMSA SportsCar Championship with race schedules, regulations, and GT4 competition.
SRO Motorsports Group
https://www.sro-motorsports.com/
Official organizer of GT World Challenge and GT4 championships worldwide.
Porsche Carrera Cup North America
https://www.porschecarreracup.us/
Official North American Porsche one make racing series with customer racing updates and technical news.










