While snow covered mountain roads are far from the ideal environment for a focused performance model like the new 718 Cayman GT4 RS, Porsche’s engineers need to test all their vehicles under different kind of conditions no matter how harsh or extreme. The most extreme Cayman yet that we previously spotted following a new 992 GT3 is still expected to be introduced later this year.
The prototype is still covered in some areas, most notably at the front fenders hiding a set of delicious vents, but we can see that it will look more threatening than the regular 718 Cayman GT4.
A new hood, with air ducts, is part of the visual upgrade, alongside the bumper with big air intakes, massive rear wing, two exhaust pipes incorporated into the diffuser, and extra cooling on the sides for the engine, including the two panels that have replaced the rear quarter windows.
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The Y-spoke center-locking wheels, wrapped in grippy tires from Michelin, cover the upgraded brakes, with big drilled discs and yellow calipers. This model will also feature a different suspension set-up, yet as you can imagine, details are scarce at the moment.
An upgraded version of the naturally aspirated 4.0-liter flat-six engine, from the 718 Cayman GT4 and 718 Boxster Spyder, will power the 718 Cayman GT4 RS. In the two lesser models, it kicks out 420 PS (414 HP / 309 kW) and 420 Nm (310 lb-ft) of torque, for a 0-100 km/h (0-62 mph) of 4.4 seconds and a 304 km/h (189 mph) top speed in the fixed-roof model.
Expect more power from the GT4 RS though, with some reports claiming that it might arrive with 450 PS (444 HP / 331 kW), whereas others believing that it will boast up to 500 PS (493 HP / 368 kW). Still, since Porsche won’t let it cannibalize the new 911 GT3, which is expected with approximately 510-520 PS (503-513 HP / 375-382 kW), the latter scenario seems unlikely, doesn’t it?