In developing the 718 Cayman GT4 Clubsport, Porsche focused on improved driveability, faster lap times, and the sustainable use of raw materials. It is the first production race car to feature body parts made of natural-fibre composite material. The driver and co-driver doors, as well as the rear wing, are constructed from an organic fibre mix, primarily sourced from agricultural by-products like flax or hemp, offering similar weight and stiffness properties to carbon fibre. The car's chassis is an aluminum-steel composite construction, optimized for stiffness and precision.
The 718 Cayman GT4 Clubsport is powered by a 3.8-litre naturally aspirated flat-six boxer engine, rigidly mounted and producing 313 kW (425 hp) at 7,500 rpm. This represents a 40 hp increase over its predecessor. The engine has a maximum rpm of 7,800 and delivers 425 Nm of torque at 6,600 rpm, with a compression ratio of 12.5:1. Power is transferred to the rear wheels via a 6-speed PDK dual-clutch gearbox with a mechanical rear-axle differential lock, optimized for racing. The car features racing-optimized water cooling with thermal management for the engine and gearbox, and an integrated dry sump lubrication system. It uses a 100-cell metal catalytic converter and requires Super Plus unleaded fuel with a minimum of 98 octane.
The car has a dry weight of approximately 1,320 kg (2,910 lb). It is delivered ex-works with a welded-in roll cage certified according to FIA Art. 277, a Recaro race bucket seat with longitudinal adjustment, and a six-point safety harness. The lightweight spring-strut front suspension is sourced from the 911 GT3 Cup. The racing brake system features multi-piece, ventilated, and grooved steel brake discs measuring 380 mm in diameter on both front and rear axles, with aluminum mono-bloc six-piston calipers at the front and four-piston calipers at the rear. Aerodynamic improvements include a fixed rear wing with a "swan neck" mount made of natural-fibre composite materials, including sideblades and black aluminum wing supports with an integrated carbon fibre Gurney flap. The car utilizes one-piece light-alloy forged wheels, 9J x 18" at the front and 10.5J x 18.5" at the rear, with 5-bolt mounting.
Trackday: This version is designed for amateur drivers participating in private track and clubsport events. It features a fixed shock absorber setup, and its ABS, ESC, and traction control assistance systems can be deactivated. Factory-fitted features include an air-conditioning system, a rescue hatch in the roof, a handheld fire extinguisher, and an 80-litre FT3 safety fuel cell. The "Trackday" model costs 134,000 Euros plus country-specific VAT.
Competition: Aimed at national and international motor racing, this model includes three-stage adjustable shock absorbers and a 115-litre FT3 safety fuel tank suitable for long-distance events. It features a brake balance system for infinite adjustment between the front and rear axles, an integrated air jack system for fast pit stops, and a quick-release racing steering wheel adopted from the 911 GT3 R. An automatic fire extinguishing system is also included. The "Competition" model is priced at 157,000 Euros plus country-specific VAT.
The 718 Cayman GT4 Clubsport is a popular sports car raced globally in various GT4-spec racing series, including the IMSA Michelin Pilot Challenge. It is also popular as a track day car. Porsche Cars Australia has imported the 718 Cayman GT4 Clubsport into the country for use in the Australian GT Championship GT4 Class and Bathurst 12 Hour (GT4 class).
In 2022, Porsche unveiled the 718 Cayman GT4 RS Clubsport, which is Stuttgart’s latest GT4 contender. This successor is powered by a 4.0-litre naturally aspirated flat-six engine from the 911 GT3, delivering 500 hp at 8,300 rpm and 465 Nm of torque at 6,600 rpm, and is equipped with a 7-speed sequential transmission. It features lightweight construction, advanced aerodynamics, and endurance-ready reliability, embodying a direct lineage and evolution from the original GT4 Clubsport model.
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