“That's the way we've always done it.” Not really a sentence to inspire change. Except at Porsche. That's because we've always made each new generation of engines higher-performing, more dynamic and more efficient than the last.
The turbocharged V6 engine in the Panamera 4 Sport Turismo, the twin-turbo V6 engines in the Panamera 4 E-Hybrid Sport Turismo and Panamera 4S Sport Turismo, and the twin-turbo V8 engine in the Panamera Turbo Sport Turismo are equipped with VarioCam Plus: a system that adjusts the camshafts and valve lift. Their turbochargers are positioned in between the cylinder banks. This reduces the distance that the exhaust stream has to travel to reach the respective turbo – delivering a more rapid response.
The twin-turbo V8 engine of the Panamera Turbo Sport Turismo and of the Panamera Turbo S E-Hybrid Sport Turismo is equipped with twinscroll turbines. The exhaust streams arrive at the turbine wheel through physically separate channels – for optimised gas cycles. The result: high torque even in the low rpm range.
The adaptive cylinder control of the twin-turbo V8 engine in the Panamera Turbo Sport Turismo activates cylinders on demand. An example: you’re driving in town and have little need for power, so the engine fires only on four cylinders. Once you demand greater power output again, all cylinders will immediately be reactivated.
Direct fuel injection is realised by a central injector inside the combustion chamber. This optimises both mixture injection and combustion – for greater efficiency and increased power delivery.
On the subject of high efficiency: all engines are purposefully equipped with electrical system recuperation, thermal management, auto start/stop with coasting function and active air intake flaps. And driving pleasure? Greater than ever.