The GT4 Clubsport, built to spec by Porsche Motorsport for race teams globally, it said to be the first production racing car to feature natural-fibre composite body parts. The lightweight material, similar to carbon fibre, is used in the doors and in the car’s rear wing, means the car is 130kg lighter than a Cayman GTS.
The news that will delight purists most is that the GT4 Clubsport retains the old version’s 3.8-litre naturally-aspirated flat-six, rather than moving to the turbocharged four-cylinder unit found in all current 718 Caymans. Here it produces 425bhp, 40 more than before, and puts its power down through a six-speed dual-clutch gearbox and a mechanical rear axle differential lock.
It’s not clear yet whether the road-going GT4 will feature the same power output, or be offered, as before, with a manual gearbox option as well. But head of GT car development Andreas Preuninger confirmed to Autocar last year that the flat-six would be retained in this year’s GT4.
The GT4 Clubsport features front suspension taken from the 911 GT3 Cup car, alongside 380mm race-spec steel brakes all-round. The single-seat interior is stripped back to the bare minimum, with luxuries thrown out in favour of a welded-in roll cage, pared-back switchgear and a racing seat with a six point harness.
The only UK offering comes in Competition spec, priced from £130,000 plus VAT and not homologated for road use. It gets three-stage adjustable shock absorbers, a 115-litre endurance fuel tank, adjustable brake bias, an integrated air jack and a quick-release racing wheel.