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Motor Trend hits Laguna Seca with Ferrari F12, Chevy Corvette, Porsche 911

According to the crew at Motor Trend, we should think of the video below "as an addendum to Best Driver's Car," a test the magazine put together that elevated the 2013 Porsche 911 Carrera 4S above all others in the category of driving joy. It seems the brand-new 2014 Chevy Corvette Stingray wasn't able to take part in the magazine's official test, and neither was the Ferrari F12 Berlinetta.
And so Motor Trend did the only logical thing: It procured both the 'Vette and Prancing Horse as soon as it could, and put them both on track with the Driver's Car-winning 911. Of course, these cars don't actually compete against each other - the Ferrari offers up 731 horsepower and wears an asking price of $434,144 as tested, which means you could buy four loaded Corvettes for the price of one F12, and still have money left for a garage to store them in - but that's not the point of this particular test.
The point of this test isn't to listen to the beautiful sounds coming from the Porsche's flat-six-cylinder, the Corvette's pushrod V8 or the Ferrari's luscious V12, either, but the video below is worth watching for those three reasons alone. You know what to do.

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 exec confirms Macan Diesel for US

The idea of a diesel-powered Porsche is the sort of thing that sounds really, really weird... until you actually drive it. The result of sticking glow plugs under the hood of Stuttgart's finest, though, is a vehicle that's nearly as entertaining as a gas-powered model but with much more torque and better fuel economy. Considering that, we think it's absolutely splendid news that following previous reports, Porsche has now confirmed a diesel-powered Macan for the US market.
"We are now busy with the development and the engineering," Andre Oosthuizen, Porsche's North American marketing VP, told Automotive News. "I can confirm that V6 diesel offering with about 245 horsepower."
Yep, that's the same 3.0-liter V6 found, most notably, in the CUV's Audi Q5 platform-mate as well as a plethora of other Volkswagen Group vehicles, both in the US and abroad. Stuttgart already offers the 3.0-liter oil-burner in the Euro-spec crossover, where it churns out 258 hp and 427 pound-feet of torque.