For example, the 24 valves of the six-cylinder engine are actuated by rigid rocker arms that do not require hydraulic valve clearance compensation. The engine of the GT4 RS is a prime example of technology transfer from motorsport to series production. Engine technology derived directly from racing Average fuel consumption is 12.3 l/100 km as per NEDC and 13.2 l/100 km as per WLTP. The 200 km/h mark is reached after 10.9 seconds, and acceleration continues right up to a top speed of 315 km/h. The naturally aspirated flat-six responds eagerly to the accelerator pedal and catapults the Porsche 718 Cayman GT4 RS to 100 km/h in just 3.4 seconds. And the road-approved 911 GT3 model is also equipped with the same high-revving engine. Indeed, this engine really is used in motor racing: in the Porsche Mobil 1 Super Cup, the Porsche 911 GT3 Cup will compete with the same engine with almost identical performance data. The new car boasts the kind of figures usually only seen with racing cars: 500 PS (368 kW) of power at 8,400 rpm, 450 Nm of torque at 6,750 rpm and a maximum engine speed of 9,000 rpm. The heart of a Porsche beats right behind the driver: the free-breathing 4.0-litre flat-six engine is mounted between the seats and the rear axle, making the new 718 Cayman GT4 RS the most powerful sports car in the history of the popular mid-engined range.
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