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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 Cayenne spotted with facelift

Although it's only been a few years since the current Porsche Cayenne was introduced, Porsche seems to be working on a midcycle update for its big SUV possibly in time to welcome the smaller Macan. As seen in these recent spy shots, it looks like the Cayenne will be getting a minor face- and butt-lift, but it's hard to say what other changes are in store or when the updated model will hit showrooms.
Up front, expect the Cayenne's new face to resemble what was just revealed on the 2014 Panamera, and we could also see this SUV using some of the new engines introduced on the Panamera including the 3.0-liter twin-turbo V6 or maybe even the E-Hybrid model. We're guessing that the new Cayenne could debut sometime next year likely for the 2015 model year. In the meantime, check out the gallery of spy shots above.

Porsche spotted testing next-gen Panamera in the snow

It's winter testing season in northern Sweden, and the latest spy shots our paparazzi on the ground have brought us is the upcoming Porsche Panamera testing in the cold and snow. The upcoming new four-door Porsche, spied wearing only minimal camouflage, appears to have a more elegant and sloping roofline than the existing model. Other details like the lights, mirrors and grille openings look fairly consistent with what we've been seeing on Porsche's other models as they've trickled out. Based on the new MSB platform, the new Panamera is set to share its underpinnings with the next Bentley Continental and possibly an Audi variant as well – though the prospect of a Lamborghini version to follow the Estoque concept seems to be off the table. The new platform will, however, make the new Panamera lighter than the current model. A new range of V6 and V8 engines are expected to provide motivation, driving the rear wheels or all four, along with the available e-hybrid system. Porsche's first four-door sedan was introduced in 2009 and underwent a facelift in 2013, so the all-new second-generation model should arrive sometime later this year or next as a 2017 model. This new model could provide the impetus for Porsche to put the Sport Turismo shooting brake version into production as well, and maybe – just maybe – a two-door coupe and possible convertible versions to follow in the footsteps of the 928.