Porsche Panamera

More Photos of Porsche Panamera Sport Turismo driven

As pretty as the Porsche Panamera Sport Turismo is to look at, its styling is not the only story here. It's the new plug-in hybrid electric drivetrain which the sleek new silhouette is hiding that's the main feature. It's entirely possible, if you believe the swirling rumours, that a production version of the car will be built in a few years, but for now you really shouldn't let that knowledge affect your buying decisions.

The e-hybrid drivetrain, as Porsche calls it, will debut much sooner. Effectively a thorough upgrade of the existing Porsche parallel hybrid drivetrain found in the current Panamera and Cayenne, e-hybrid swaps the existing nickel-hydride battery for a much more perky lithium-ion unit.