New Porsche Cayman GT4 RS revealed: hardcore gets harder

Published: 17 November 2021

► The Cayman has a new range-topper
► 911 GT3-spec engine and rear wing
► Yours, if you’re lucky, for £108k

The rumours, whispers and copious spy shots were all true! Porsche has officially revealed the 718 Cayman GT4 RS at the 2021 LA motor show.

This is now the most hardcore version of Porsche’s small sports car, refining the GT4 formula greatly, and offering the Porsche elite another toy to play with.

The most powerful Cayman?!

Quite right. Porsche says the naturally-aspirated flat-six is derived from the 911 GT3, making 493bhp (that’s 79bhp more than the regular Cayman GT4!) and 331lb ft, revving to 9000rpm along the way.

cayman gt4 dials

The GT4 RS is only available with a PDK automatic transmission and, with power sent to the rear wheels as usual, 0-62mph sprints can clock in at 3.4 seconds – half a second quicker than a PDK-equipped GT4.

There’s more to it than the engine, obviously…

Of course, as the GT4 has been on a diet to create this new RS version. Porsche says the new RS weighs just 1415kg with a full fuel tank, which happens to be 35kg lighter than a regular GT4. That’s down to carbonfibre used in the bonnet and front wheelarches, as well as reducing the amount of insulation around the cockpit. The rear glass is thinner and the door handles are simple fabric pulls.

cayman gt4 rs wing

As for the rest of the design, the GT4 RS takes on the 911 GT3’s swan neck fixed rear wing, which allows you to adjust its downforce. Porsche says there’s a ‘Performance’ setting for it, which generates around 25 per cent more downforce than the regular GT4. Inside, a roll cage is standard, and the upholstery is finished in Porsche’s grippy ‘Race-Tex’ material.

Not enough? Porsche offers a Weissach pack (applied to the car in the images), where most of the outer trim pieces are made of bare carbonfibre, and you can have either forged aluminium wheels or forged magnesium ones.

All of this leads to a lap time around the Nürburgring Nordschleife of 7:09.3 minutes.

cayman gt4 rs front

I want one!

Join the queue. If you’re lucky enough to be a potential customer, you’ll have to stump up at least £108,370 for the pleasure. The first ones will arrive in the UK in spring 2022.

By Jake Groves

CAR's deputy news editor, office Geordie, gamer, lover of hot hatches