Porsche announced the second generation of its Panamera sedan will include a plug-in hybrid version.

Porsche said this new gas-electric iteration will be named the Panamera S E-Hybrid, and will be the world’s first plug-in hybrid in the luxury class.

The second generation of the Panamera will celebrate its world premiere at the Shanghai Auto Show, which opens its doors on the 21st of April 2013.

According to Porsche, the Panamera S E-Hybrid is a systematically advanced development of its parallel full hybrids with a more powerful electric motor, a higher-performance battery that supplies more energy and the ability to charge it externally from the electrical grid.

The electric drive system produces 95 horsepower (70 kilowatts), which is more than double the power of the previous model’s electric motor at 47 horsepower (34 kilowatt).

Panamera S E-Hybrid

This electric motor draws its energy from a newly developed lithium-ion battery, which at 9.4 kilowatt-hour has over five times the 1.7 kilowatt-hour energy capacity of the previous battery, which was of nickel metal hydride technology.

When connected to an industrial outlet, Porsche said this new lithium-ion battery can be charged in around two-and-a-half hours via the integrated on-board charger and the standard Porsche Universal Charger (AC). The same battery can be charged in less than four hours when connected to a conventional household electrical outlet.

The Panamera S E-hybrid is capable of accelerating from a standstill to 60 mph in 5.2 seconds, an improvement of a half second when compared to the previous Panamera S Hybrid.

An electric boost function helps in instances where maximum acceleration is desired, when the electric motor works in tandem with the combustion engine during acceleration. Electric boost is also available when a kick-down switch in the throttle pedal is activated by the driver during acceleration.

The Panamera’s top track speed is said to be 167 mph.

2014 Porsche Panamera Interior _Dash-668In addition, the previous model’s NEDC fuel consumption of 7.1 l/100 kilometers (33.08 mpg) was reduced by 56 percent to 3.1 l/100 kilometers (75.63 mpg). Final U.S. EPA fuel economy ratings will be available closer to launch.

At the same time, Porsche said the Panamera’s all-electric driving performance was substantially improved with regard to electric acceleration, electric range, and electric top speed.

The electric driving range of the Panamera S E-Hybrid was determined to be 36 kilometers in NEDC-based testing. Driving range may vary in real operation, since air conditioning and heating are deactivated in NEDC test conditions, for example.

A realistic all-electric driving range in everyday operation would lie somewhere between 18 and 36 km, per Porsche.

The Panamera with the new hybrid drive can reach speeds of up to 84 mph (135 km/h) in all-electric operation.

The Panamera S E-Hybrid uses the eight-speed Tiptronic S automatic, while the gas engine stays the same as the one found on the 2013 Panamera hybrid, a turbocharged V6 producing 333 horsepower.

The new generation of Panamera models will be launched in the U.S. and Canada in the fall; the Panamera S E-Hybrid will cost $99,000 in the U.S. and CDN$125,900 in Canada. [Edit (April 4): Porsche Canada corrected its press release and documentation. The Panamera S E-Hybrid will start in Canada at CDN$113,300.]