The Sport Turismo concept envisions a wagon body-style similar to the Mercedes-Benz CLS Shooting Brake to give the Panamera a bit more interior space and a more attractive shape.

The extended roof, however, is not the extent of what's new about the Sport Turismo. Porsche also gave it some styling enhancements, including headlights like those found on the new Boxster and tail lights seemingly borrowed from the 911, to preview the design the next-generation Panamera could follow. The interior has also been streamlined into an even more elegant environment.

The German automaker also gave the Panamera Sport Turismo a plug-in hybrid powertrain consisting of a 333-horsepower, 3.0-liter supercharged V6 engine and a 95-horsepower electric motor.

The Sport Turismo, then, represents something of a trifecta of new developments from Porsche. Just which makes it to the road, however, remains to be seen, but will largely depend on how the public receives it.