Powered by a 3.8-litre flat-six engine (borrowed from the 911 Carrera S) with 283kW, it comes teamed exclusively to a six-speed manual transmission. Porsche claims the Cayman GT4 can run the 0-100km/h sprint of 4.4 seconds. Its top speed is limited to 295km/h, and fuel consumption is claimed at 10.3 litres per 100 kilometres.
The German car maker claims the GT4 — which was tuned by the company's motorsport team in Weissach — is capable of a Nurburgring lap time of 7:40.
The beefier looking GT4 features a lower ride height (dropped by 30 millimetres) and larger brakes, while many chassis components have been borrowed from the 911 GT3 road racer.
Further changes to the GT4 include a new bumper and oversized rear wing that the brand says have been "systematically designed for downforce". Options for the GT4 include ceramic brakes, racing shell seats constructed of carbonfibre-reinforced plastic, and a new iteration of the brand's Sport Chrono package with a Track Precision App.
Inside the GT4 are a pair of sports seats trimmed in leather and Alcantara, as well as a sport steering wheel.
"GT sports cars from Porsche embody the most passionate connection possible between everyday driving and the race track and thereby the sporty core of the brand: Intelligent Performance. Four out of five owners of GT Porsche sports cars use their cars on a track," the company said.
The Porsche Cayman GT4 will arrive in showrooms in the third quarter of 2015.
Click the Photos tab above for more images of the new Porsche Cayman GT4.