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February 17, 2011

GERMANY: Porsche unveils hybrid Panamera

Porsche will launch its second production hybrid, the Panamera S later this year, claiming the 380hp model drinks petrol at the rate of 6.8litres/100km on the European Driving Cycle (NEDC) on optional low rolling resistance tyres.

Porsche will launch its second production hybrid, the Panamera S later this year, claiming the 380hp model drinks petrol at the rate of 6.8litres/100km on the European Driving Cycle (NEDC) on optional low rolling resistance tyres.

Range in purely electric mode is about a mile with electric-only acceleration possible up to just over 50 mph (85 km/h).

The parallel full hybrid has a ‘sailing’ or coasting mode. When the driver lifts off the accelerator at normal highway cruising speeds, the petrol engine is switched off and disengaged from the drivetrain by a decoupling clutch. This eliminates the combustion engine’s drag forces and braking effect in the interest of lower resistance, fuel consumption and emissions. As soon as the driver presses the accelerator again the engine starts and rpms are increased to match the current vehicle speed.

It does this seamlessly thanks to the Hybrid Manager, which also helps the Panamera S Hybrid accelerate dynamically in gears at higher speeds much like a conventional Panamera.

The petrol engine/electric motor combination is shared with the Cayenne S Hybrid – a three-litre supercharged V6 engine delivering 333hp plus a 47hp (34 kW) electric motor. Either drive unit can operate independently or together to drive the rear wheels. The electric motor also serves as the car’s generator and starter and is connected to a nickel metal hydride (NiMh) battery. Transmission is eight-speed Tiptronic S with a wide range of gear ratios than the Cayenne.

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