The GT4 is the first Cayman to venture into the 911's performance territory.

Porsche has introduced a more hardcore version of the Cayman called GT4. Unveiled this week at the Geneva Motor Show, the GT4 is the first Cayman to venture into the 911's performance territory.

Power for the Cayman GT4 comes from a modified version of the 911 Carrera S' 3.8-liter flat-six engine that has been slightly detuned to produce 385 horsepower. Bolted to a six-speed manual transmission, the six-cylinder sends the Cayman GT4 from zero to 60 mph in 4.2 seconds - 0.1 seconds faster than a Carrera S equipped with a seven-speed manual - and on to a top speed of 183 mph.

911-sourced chassis components, bigger brakes and a stiffer suspension setup that has been lowered by over an inch help keep the power in check. Porsche promises the GT4 can lap the North Loop of the grueling Nürburgring track in a class-leading 7:40.

Outside, the GT4 gains a number of aerodynamic enhancements including a deep front bumper that incorporates three large air dams and a splitter, a sizable fixed rear wing and a wide air diffuser out back. Model-specific alloy wheels help set the GT4 apart from other members of the Cayman family.

The interior has been upgraded with features such as sport seats upholstered in a combination of leather and Alcantara and a three-spoke sport steering wheel.

Following its debut at the Geneva Motor Show, the Porsche Cayman GT4 will arrive on dealer lots nationwide next July as a 2016 model. It will carry a base price of $84,600 excluding a mandatory $995 destination charge. The list of options will include Porsche Carbon Ceramic Brakes (PCCB), bucket seats made out of carbon composite and a custom Sport Chrono package that includes a Track Precision application.

Live photos by Ronan Glon.