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Porsche 911 GT3 RS getting all-new atmospheric engine

Porsche surprised many of its most puritanical enthusiasts when it took a decidedly more usable approach with the current 911 GT3. But when the new GT3 RS debuts, it promises to be a much more extreme departure. And a big part of that comes down to the engine. At the Detroit Auto Show this week, Auto Express spoke with Porsche R&D chief Wolfgang Hatz – who also happens to be head of engine and transmission development for the entire Volkswagen group. Hatz revealed that Porsche has developed a completely new engine for the GT3 RS, and while previous rumors suggested the RS would go turbo to fill in for the lack of a GT2 (and make the most out of its displacement), Hatz confirmed that it will be naturally aspirated. Considering that Porsche rarely goes downwards when it comes to 911 engine displacement, only upwards, we'd expect the new RS to pick up where the previous 4.0 left off. The new GT3 RS is also expected to pack a more extreme suspension, aero and stripped-out interior, but those hoping for an old-school approach may be disappointed to learn that the new RS will (at least at launch) only be available with the seven-speed dual-clutch transmission – though a manual version could follow if there's enough demand. In a related development, Hatz also hinted that the Cayman GT4 could debut at the Geneva Motor Show in March, with an even more extreme approach than the previous Cayman R. The new top-of-the-line Cayman is reportedly being developed to comply with GT4 class racing regulations but be fully homologated for road use. Related Video:

Porsche Pajun to go all-electric as Tesla rival

Porsche has been rumored to be working on a smaller counterpart to the Panamera for nearly four years now, but we have yet to see any sign of the model dubbed Pajun coming to fruition beyond a digital rendering hidden in the background of another Porsche design. Apparently Stuttgart has been having trouble making the business case in an already crowded market segment. But that doesn't mean the project is completely off the table. According to the latest from Germany's own Auto Motor und Sport, Porsche is now planning to launch the so-called Pajun (shorthand for Panamera Junior just like the Macan project was previously called Cajun) purely as an electric vehicle. With an eye evidently fixed on how dedicated hybrids and EVs are gaining traction in the marketplace (to say nothing of actual tarmac), the electric Pajun - almost certain to carry a different name to the showroom – would be different enough to distinguish itself from existing four-doors of that size like the Mercedes E-Class, BMW 5 Series, Audi A6, et al. Word has it that Porsche believes that battery technologies will advance enough over the next four years to give its four-door EV a range of nearly 250 miles on a single charge. The model's arrival would be just the latest in a series of environmental concessions made by the company with the broadest range of plug-in hybrids on the market. Aside from the E-Hybrid versions of the Panamera and Cayenne, Porsche arguably led the charge (so to speak) towards hybrid hypercars with the 918 Spyder, is downsizing many of its engines and is turbocharging almost the entirety of the 911 range.

Porsche Boxster Spyder GT4 under consideration

Apparently, the Porsche Boxster Spyder will not be the ultimate example of the breed, after reports have surfaced indicating that Porsche is considering an even hotter roadster after seeing strong demand for the all-new Cayman GT4. The new lightweight Boxster was just unveiled a few weeks back at the 2015 New York Auto Show, showing a 3.8-liter flat-six, just like the Cayman GT4. It's without a number of GT4-specific components, though. According to Autocar, a Boxster Spyder GT4, if it were built, would benefit from the same 911 GT3-inspired adjustable front suspension, a unique rear suspension, GT3-spec brakes and a new aerodynamic kit. "We are looking at it right now," a source within Porsche told Autocar. "Much of the engineering has already been done for the Cayman, so we think this might be a good direction for us." Related Video: