Porsche has revealed the new 911 GT4 R ahead of its race debut in 2027. This is the first time the German automaker is using the 911’s platform for one of its GT4 racers, with the other GT4 being the RS Clubsport based on the 718 Cayman. According to Porsche, the 911 GT4 R, in comparison, offers a punchier engine, wider track and more advanced motorsport electronics. The 911 GT4 R is expected to start at USD 375,500 in the US and hit racetracks during the 2027 motorsport season.
- Powered by a 4.0-litre flat-six with up to 520hp
- Gets a race-spec transmission, adjustable dampers and additional ballasts
- Uses lightweight natural-fibre-reinforced plastic with epoxy resin
- Gets an integrated data logger, GPS equipment and a 10.3-inch gauge cluster
Porsche customer motorsport programme
The 911 GT4 R joins the 718 Cayman GT4 RS Clubsport
While GT4 races debuted in the mid-2000s, Porsche entered the category in 2016. During this period, Porsche has produced over 1,500 racers based on the 718 Cayman. The new 911 GT4 R is aimed at customers seeking higher performance benchmarks when participating in global motorsport events such as the ADAC GT4 and the GT4 European Series. The new 911 GT4 R is meant to complement the existing Cayman range, thus offering teams a higher-performance option. Porsche also stated that the 911 GT4 R benefits from the detailed work already carried out during the development of the 911 Cup. Introduced in July 2025, the 911 Cup uses the same flat-six engine and sequential gearbox as the new 911 GT4 R.
Porsche 911 GT4 R: Powertrain details
Gets regulation-spec engine tuning and a 6-speed sequential gearbox
The new GT4 R gets a 4.0-litre flat-six engine with up to 520hp and 470Nm from the 911 Cup. However, to comply with Balance of Performance (BoP) regulations, this high-revving engine is fitted with 53.7mm airflow restrictors that lower the output to 430hp. Transmission duties are handled by a 6-speed sequential dog-gearbox controlled via paddleshifters and a four-disc racing clutch.
Due to regulations, Porsche has made other changes to the GT4 R over the 911 Cup. These include narrower wheels (by one inch) with a five-hole mounting pattern, dual-adjustable dampers and three selectable spring rates. The 911 GT4 R also features additional ballasts to allow it to participate in different weight classifications as specified by BoP regulations.
Porsche 911 GT4 R: Design and interior
Uses lightweight fibre composites and a race-spec interior with an integrated data logger
Some of the key structural elements of the 911 GT4 R are lifted straight from the 911 Cup, especially those that improve aerodynamic efficiency. One of the important ones here is the large manually adjustable rear wing, which can be set in eleven different positions. To minimise excess weight, a natural-fibre-reinforced plastic along with epoxy resin has been used for the doors, engine cover and various aerodynamic elements, says Porsche.
The same lightweight material is also found in the race-spec cabin of the 911 GT4 R. To support analysis and performance optimisation during a race, there’s an integrated data logger that’s paired with precise GPS equipment. Aside from a carbon-fibre steering wheel and roll cage, the relatively sparse interior features a 10.3-inch full-colour digital driver’s display and a dash-mounted settings control unit.
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