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Porsche 911 Cabriolet refresh may hide new engine

If we learned nothing else from our recent frolic through Porsche's secret museum, it's that the automaker goes to incredible lengths to disguise future products during initial testing. Just as a number of cars in that Stuttgart bunker hid the true identity of developmental mules (like the Audi-V8-powered 911), such could very well be the case with these spy shots showing what, on the surface, appears to be simply a facelifted 991 911 Cabriolet.
Similar to what we saw last month on a 911 coupe, this Cabriolet has obvious styling modifications made to the front and rear fascias suggesting that the 911's still-fresh appearance is already set to get a few tweaks. The big news here is at the rear of the car. The additional vents on the lower edge of the fascia and the mocked-up vent above the engine leads our spy photographer to believe that a new engine could be tucked under the body work - likely a smaller-displacement, turbocharged flat-six focusing more on improving fuel efficiency and reducing exhaust emissions rather than performance.
We last heard rumblings of such a detuned 911 back in August, but could this be our first look at said new model? Have a look for yourself, and let us know what you think - either about this mule specifically or the idea of a "green" 911, in Comments below.

Jay Leno puts carbon fiber wheels to the test on a Porsche 911 GT3 RS

Jay Leno's Garage usually focuses on looking at cars new and old, speaking to their owners and then Jay taking a drive to see what he thinks. However, Leno throws his usual shtick to the curb this week to do a full product test of the carbon fiber wheels from a company called Carbon Revolution. If you're not interested in hearing about wheels for 18 minutes, don't worry. They get mounted on a Porsche and are tested back-to-back with stock wheels, and Leno takes the 911 for a track test, too.
While carbon-fiber wheels aren't exactly a new idea, Carbon Revolution's goal is to create a lightweight, one-piece product that can be mass produced. The company even claims that it already has a deal with an OEM automaker to offer them on a vehicle in a few years. The key to the technology is that it doesn't need an expensive autoclave to be made.
In the meantime, the company's carbon fiber wheels are available as an aftermarket option for about $15,000 a set, according to the video. They weigh in at about 15.5 pounds each and offer OEM-levels of stiffness, so they could cut some unsprung mass off of a performance car. Watch here as Jay and his mechanic Bernard lap Willow Springs and give their feedback about what they think of this cutting-edge technology.

2015 Porsche 918 Spyder: Touring the factory

Willy Wonka granted just five lucky Golden Ticket holders access to his incredible chocolate factory, yet we consider ourselves just as fortunate, as Porsche invited us to be among the first of just four American journalists to see behind the closed doors of its 918 Spyder assembly plant in Zuffenhausen, Germany. Of course, there were no Oompa Loompas or flowing chocolate rivers, but the vast white hall tasked with producing only 918 examples of the automaker's limited-production flagship revealed details that make Wonka's Golden Egg sorting room seem rather mundane in comparison. Unlike a traditional automobile manufacturing plant, which often encompass all processes of making a vehicle (e.g., stamping steel panels, welding components and painting), the 918 Spyder is built in an assembly plant. This means that hundreds of already manufactured parts, each crafted by Porsche offsite suppliers, are brought under one roof to be assembled into a perfectly finished product that is much sweeter – and far more expensive – than any candy delicacy. Our tour guide was Michael Drolshagen, Porsche's Director of Production, Logistics and Quality - a walking encyclopedia when it comes to the engineering and assembly of the 918 Spyder. Drolshagen generously offered us unrestricted access to walk among the factory's 110 workers – and a couple-dozen vehicles in process – to photograph everything. This is a story best told with pictures, so we've put together a raft of our best images in a high-resolution gallery and captioned each with a detailed description. If you've still got questions, please voice them in Comments section and we'll do our best to answer.