Thanks to the purposeful control of heat flow and the on-demand, gradual activation of the various cooling circuits, the engine and gearbox warm up to normal operating temperature more rapidly. The resulting reduction in friction also reduces fuel consumption and CO2 emissions. During sporty driving, thermal management also acts to reduce temperatures so as to maintain a high degree of performance.
The auto start/stop function, which is integrated as standard in the Cayman models, switches off the engine if, for example, you stop at traffic lights, select neutral and then release the clutch pedal. In cars with Porsche Doppelkupplung (PDK), it is simply a case of applying and holding the brake when you are in a wait situation. All audio and communication systems remain switched on.
Another efficiency-enhancing feature of the Cayman models is intelligent electrical system recuperation. The vehicle battery is recharged by the generator, especially when braking. Thanks to this selective recharging, when you accelerate, the maximum possible output of the engine can be directed straight to the road because the electrical systems are supplied mainly by the energy that was stored in the battery during the braking phase.
The electronic engine management system ensures optimum engine performance at all times. It regulates all engine-related functions and assemblies. The results are optimum power output and torque with comparatively low fuel consumption and emissions – whatever the driving style.