Porsche 911 Targa 4 GTS (991-2). At the heart of every Porsche lies its engine. The rear end of the new 911 GTS models houses a three-litre, six-cylinder biturbo flat engine with 331 kW (450 hp). The maximum torque of 550 Nm is achieved between 2,150 and 5,000 rpm. The engine delivers 22 kW (30 hp) more than the 911 Carrera S (and 15 kW (20 hp) more than the corresponding GTS predecessor model with naturally aspirated engine).
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