The Porsche 718 Cayman GT4 features the new 4-liter 6-cylinder boxer engine. The naturally aspirated engine bears a resemblance as the turbo engines in the current 911 Carrera model series. This new high-revving engine produces 420 horsepower (309 kW) – 35 HP which is more than the GT4 predecessor models. It also delivers a maximum torque of 420 Nm at between 5,000 and 6,800 rpm. The manual transmission sports cars can both break the 300 km/h barrier: the 718 Cayman GT4 can reach 304 km/h (188 mph). 0 to 100 kph (62 mph) in 4.4 seconds.