By Otsile Kadiege
Porsche recently unveiled the sharpest member of the 718 family – the new range-topping Cayman GT4 RS. According to the Stuttgart based automaker the GT4 RS is an uncompromising driver’s car designed to impress with its lightweight construction, extremely agile chassis set-up, sophisticated aerodynamics and unique soundtrack.
The new 718 Cayman GT4 RS is powered by a high-revving (9,000rpm), naturally aspirated flat-six engine sourced from the 911 GT3 Cup racing car and the 911 GT3 series production model. The power plant makes 358kW / 450Nm and exclusively mated to Porsche’s 7-speed dual-clutch PDK transmission. The Cayman GT4 RS sprints from 0-100km/h in 3.9 seconds and has a top speed of 302km/h.
Less weight, more power
In typical RS style, lightweight construction is a defining element of the new 718 Cayman GT4 RS design. The two-seater weighs only 1,415 kilograms, with a full fuel tank and without a driver as defined by the DIN standard.
According to Porsche, this weight reduction is achieved thanks to the use of carbon fibre reinforced plastic (CFRP) for components such as the bonnet and front wings. Lightweight carpets also save weight, as does reducing the amount of insulation material. The rear window is made of lightweight glass. Lightweight door panels with textile opening loops and nets on the storage compartments complete the quest to eliminate every superfluous gram.
The new fixed rear wing, its swan-neck attachment and aluminium wing supports, are a distinctive element of the exterior design. This highly efficient wing principle is derived from the Porsche 911 RSR GT racing car and was first adopted in a Porsche series production car with the 911 GT3. According to Porsche, the combination of 30-millimetre-lower ride height compared to the 718 Cayman, the eye-catching vents on the front wheel arches, the aerodynamically optimised underbody panelling with connected rear diffuser, the multi-adjustable front diffuser and the new front spoiler lip with flow-around side blades, in the Performance mode reserved for use on race tracks the GT4 RS generates approximately 25% more downforce than the GT4.
The optional Weissach package takes the dynamic design of the GT4 RS even further. The front luggage-compartment lid, process air intakes, cooling air intakes, airbox cover, exterior mirror upper trims and rear wing have a carbon-weave finish. The titanium tailpipes look similar to the exhaust system on the Porsche 935. The fitted roll cage at the rear is also made of titanium. The upper section of the dashboard is upholstered in Race-Tex material and a large Porsche logo is integrated into the rear window. With the Weissach package 20-inch forged magnesium wheels can be ordered at additional cost instead of the 20-inch forged aluminium wheels.
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