looks like Porsche has plans
Porsche says that the plug-in hybrid 918 Spyder can bolt to 60 mph in just 3.2 seconds and can travel 16 miles on battery power alone. The 3,285-pound vehicle is said to deliver an estimated 78 mpg (U.S.) according to Porsche.http://www.dailytech.../article17804.htm
No one knows if all of this performance goodness will ever make its way into a production vehicle, but one can hope that at least the styling cues and maybe a toned down version of the hybrid system could make it into a production vehicle.
Porsche is also readying a hybrid version of its second generation Cayenne SUV. The hybrid powertrain is said to achieve 34.5 mpg on the European cycle.http://www.dailytech.../article17517.htm