Just yesterday Porsche brought us news of its new Cayenne Diesel and now the company has released further details of the upcoming Cayenne S Hybrid SUV.
Using the direct-injection supercharged 3.0-liter V6 engine found in the new Audi S4 and A6, in the Cayenne S Hybrid that motor will be mated to a 52-hp electric motor that also makes an impressive 221 ft-lbs of torque. A 38 kw nickel metal hydride battery pack, which is small enough to fit in the Cayenne’s spare tire well, will store that energy. The electric motor will also act as an alternator.
Power will be put to the ground through a new 8-speed automatic transmission, with a Hybrid Manager to determine what mode the full–hybrid powertrain should be in. Top speed will occurring sixth-gear with the top two gears reserved for low rpm fuel-efficient highway driving.
The Hybrid Manager can select from: power from the combustion engine only, power from the electric motor only, and power from both sources. And it can change from mode to mode in just 300 milliseconds.
The Hybrid Manager has several other features as well, including allowing the vehicle to operate on pure electric power for up to 1.2 miles. It will also switch the electric motor to an alternator mode when only the combustion engine is being used, and then feed that power to the battery.
The Cayenne S Hybrid features several other innovations including electronically driven air conditioning, power steering and an electric drive pump that has been added to the transmission oil pump.
Available in 2010, Porsche says the Cayenne S Hybrid will emit 20 percent fewer emissions that a comparable engine and will achieve a combined fuel economy rating of 26 mpg. Impressively, it will also be able to hit 62 mph in just 6.8 seconds.
Official release after the jump: