Just like its well-developed production sibling, the Cayman GT4 Clubsport is powered by a 3.8-liter flat-six engine, positioned directly behind the driver's seat. The racing version features a modified six-speed Porsche double clutch PDK transmission with shift paddles on the steering wheel and a mechanical rear-axle locking differential specifically for racing.
The lightweight strut front axle is taken from its big 911 GT3 Cup brother, which is campaigned in 20 one-make Porsche championships around the world. An enhanced lightweight strut suspension with transverse arms adopted from the 911 GT3 Cup, is at the rear. The racing brake system features large 15-inch (380-millimeter) steel brake discs all round.
One-piece, six-piston aluminum fixed calipers are located at the front, with a four-piston equivalent at the rear. The anti-lock brake system features twelve settings. The Electronic Stability Program has been recalibrated for slick racing tires. The power steering is operated electro-mechanically.
Tipping the scales at just 1,300 kilograms, the Cayman GT4 Clubsport, is a virtually turn-key racecar, delivered from the factory with a welded-in safety cage, a racing bucket seat as well as a six-point harness.
The North American version comes with a 70-liter or an optional 100-liter FIA FT3 safety fuel tank. The car also comes with a central fire extinguisher system. Mounted on the front axle are 18-inch five-bolt forged wheels with 25/64-18 tires while the 18-inch five-lug forged wheels at the rear have 27/68-18 tires.