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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.

Leno steals Porsche 918 from The Quail for latest Garage episode

Just because he's a famous celebrity doesn't mean Jay Leno got to take it easy at the Pebble Beach Concours d'Elegance earlier this month. Having already spent some time with the gorgeous Cadillac Elmiraj Concept and Ed Welburn for a recent episode of Jay Leno's Garage, the late night talk show host also got to put a few miles on a prototype version of the Porsche 918 Spyder.
Like a usual episode of JLG, Leno first goes over the details of the car with Frank Walliser, head of the 918 Spyder's development, before taking it out for spin. Check out the full episode, which is posted below, to hear what Walliser has to say about the car. More importantly, though, crank up your computer's volume and let the car's high-revving engine and amazing exhaust note do plenty of talking for itself.

Porsche Cayman GT4 Clubsport delivers track-only thrills for $165K

Among the cars on display in Los Angeles, production and concept cars are normal. Racers, though, are rather rare. And race-specific models that can be had for less than $200,000 are more or less unheard of. Don't tell that to Porsche, though, because the German automaker has introduced the new Cayman GT4 Clubsport for the relatively reasonable sum of $165,000. For that supercar-worthy price, you'll be getting a number of race-derived parts. As we covered in our preview post, that will include a strong roster of safety equipment, including a full roll cage and six-point harnesses that will keep you pinned in a purposeful racing bucket. The standard 18.5-gallon fuel tank can be replaced with an optional 26.5-gallon setup, while a central fire extinguisher keeps things from getting too hot out on the track. Mechanically, the Clubsport adjusts the Cayman GT4 formula for the track. The road car's 3.8-liter flat-six engine is still mounted amidships, but it's paired with super-quick, six-speed dual-clutch transmission, the critically acclaimed PDK. It's the suspension, though, that sees the most dramatic changes, as Porsche has pressed the front and rear strut suspension from the 911 GT3 Cup into duty for the GT4 Clubsport. The new system is lighter, and contributes to the track star's 2,866-pound curb weight. That's nearly a 100-pound drop over the road car. A set of four 15-inch steel rotors clamped by six-piston calipers up front and four-piston units in the rear should deliver stopping power as impressive as the cornering and acceleration. Amateur racers interested in the new coupe can purchase it directly from Porsche Motorsports North America for competition in the 2016 racing season. Homologation is still being hammered out, but Porsche expects the GT4 Clubsport to be certified for the "VLN Long Distance Championship Nurburgring, the Ultra 94 GT3 Cup Challenge Canada, the PCA Club Racing Cayman GT4 Clubsport Trophy East as well as for other club-level competition events around the world." Read on for the official press release. New Porsche Cayman GT4 Clubsport for the racetrack World premiere in Los Angeles LOS ANGELES, Nov. 18, 2015 /PRNewswire/ -- Porsche has added a new sports car for amateur and club racing to its Motorsports fleet: The Cayman GT4 Clubsport celebrated its world premiere today at the Los Angeles Auto Show.