One of the primo reveals at the 2012 Paris Auto Show, the striking Porsche Panamera Sport Turismo portends a likely future addition to the automaker's lineup. In addition to boasting styling cues that are expected to filter into other members of upcoming Porsche models, the Panamera Sport Turismo is a plug-in hybrid fitted with an advanced version of the automaker's existing parallel hybrid setup currently found in the Panamera S Hybrid and Cayenne S Hybrid.

Finished in Liquid Metal Blue, the Panamera Sport Turismo Concept's bold bodywork offers "an outlook on a possible Porsche sports car of tomorrow." The edgy front fascia features four-element full LED headlamps complemented by LED C-Blade lamps in the outer air intakes that comprise the directional signals and running lights. The car's sweeping, low profile appears even cleaner thanks to short overhangs and cameras mounted in the side vent outlets that replace the conventional outside mirrors. Where center lock hubs on the car's big alloy wheels speak to Porsche's performance heritage, subtle "e-hybrid" badging on the front doors indicate the direction the company will be pursuing in the years to come. The wagon-influenced rear treatment of the Panamera Sport Turismo Concept reflects a similar bond between the past and the future. Although fully reshaped and incorporating new LED lighting designs, an adaptive carbon fiber rear spoiler and a "Sport Turismo 1" badge done in the same acid green as its e-hybrid emblems and brake calipers, it remains immediately recognizable as a Porsche -- and one with serious performance intent.

The Panamera Sport Turismo Concept's 4-seat cabin also looks ahead in a way that Porsche says provides information in a manner that's "as little as possible and as much as necessary." A large, programmable TFT Color display ahead of the driver replaces conventional instruments provides a wide range of that data. It's flanked by two monitors that show images from the side-mounted cameras. These are complemented by a pair of additional readouts, one providing hybrid-specific information the other denoting the combined power output of the system. The Sport Turismo Concept's upwardly ascending center stack is highlighted by an all-new touch display with black-panel technology that controls all e-hybrid functions as well as the audio, climate control and Porsche Communication Management systems. It also lets the driver fine tune the hybrid system to operate in maximum fun, maximum efficiency or maximum performance modes. Like its peers, the Panamera Sport Turismo Concept can be paired with the owner's smartphone to allow for a broad range of other remote controlled functions.
Hybrid heart of the rear-drive Panamera Sport Turismo Concept is a gas-electric package that matches the existing 3.0-liter supercharged V6 engine - still rated at 329 horsepower - with a new electric motor that makes 94 ponies, about twice what the current production motor develops. Collectively, this duo makes 410 horsepower, enough to send the car streaking to 60 mph in less than 6.0 seconds. Power for the motor comes from a new liquid-cooled 9.4 kWh lithium-ion battery pack that's mounted behind the rear axle under the trunk. Barely larger than the nickel-metal hydride unit used today, it packs nearly triple the storage capacity. That extra output permits the Panamera Sport Turismo Concept to travel almost 19 miles in EV mode.

While the default setting for this prototypical Porsche plug-in is pure electric, a switch on the multifunction steering wheel lets the driver instantly change to hybrid operation as well as select an "e-charge" mode that intensifies the level of on-the-fly regeneration any time the vehicle is operating on combined gas/electric power. When its time to replenish the battery pack, the Panamera Sport Turismo Concept's on-board interface easily links to either a home or commercial charger, with the latter unit requiring just 2.5 hours to complete the task.

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