article thumbnail

Porsche presents more efficient Gen 2 919 Hybrid LMP1 racer for 2015

Green Car Congress

A liquid-cooled lithium-ion battery—developed by A123 Systems in cooperation with Porsche—temporarily stores converted braking energy from the front axle as well as converted exhaust-gas energy. The combustion efficiency of the now lighter and more rigid 2-liter V4 turbocharged gasoline engine has been increased.

Porsche 150
article thumbnail

Porsche Panamera S E-Hybrid PHEV averages 4.4 l/100 km (53.4 mpg US) during test drives

Green Car Congress

kWh lithium-ion battery on the electrical grid, Porsche noted. kWh Li-ion battery pack. The E-Power mode—activated by default, provided that the battery charge state is sufficient—enables largely all-electric driving. It charges the high-voltage battery during the drive. miles) city driving, 9.2

Porsche 273