Porsche has confirmed it will launch a hybrid version of the Panamera in 2011.
The Panamera hybrid will use the same petrol-electric powertrain as the recently launched Cayenne hybrid.
That means it will be powered a 46bhp electric motor mated to a 329bhp, supercharged 3.0-litre V6 petrol engine.
The hybrid system is a full parallel hybrid, in which the electric motor or the petrol engine, or both, can power the drive system. The all-wheel drive Cayenne hybrid uses an eight-speed automatic gearbox.
The Panamera hybrid will become the second regular production Porsche to be offered with a hybrid drivetrain, after the Cayenne.
The firm also intends to put its 918 Spyder hybrid supercar concept into production and has created a 911 hybrid racer.
Porsche is also developing three all-electric Boxsters and will begin trials of these cars in Germany next year.