2012 Porsche Cayenne on 2040-cars

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The 2013 Rolex 24-hour race at Daytona comes down to the last hour [spoilers, w/video]

It took 24 hours to run the race, but it was the last one was stuffed with the high action as four cars were still trying to figure out how to gain victory on the track and in the pits. Along with the obligatory crashes, spins, mechanical issues and retirements had come numerous penalties, a double-digit number of full-course yellows and two hours of fog that turned early Sunday morning into a stretch of parade laps.
The final hour would make up for the morning - drivers who might have been happy just to get on the podium had a shot at victory as the end of the race approached, and that turned into a few gambles that paid off, and at least one that didn't...

Porsche Cayenne shows a bit more face, plug-in spotted

Porsche was first rumored to be working on a plug-in hybrid (PHEV) version of the Cayenne over a year ago. However, we had never seen it, until now. The new model was caught almost completely undisguised while testing. In another stroke of luck, we got a glimpse of the upcoming facelift for Porsche's SUV (pictured above) as well.
According to the spy shooter, it was windy during the cars' cold weather testing. The cover blew off of the facelifted Cayenne, and there was enough time to snap these pictures before it could be hidden again. The changes are all quite minor but jive with what we saw the last time it was spied. The rear still wears some cladding but is expected to be hiding lights similar to the Macan.
The second gallery shows off the upcoming Cayenne PHEV. It looks nearly identical to the standard model, except for the extra panel on the driver's side of the car that hides the electric port. One image even shows the car plugged in. The new version is expected to use the same supercharged 3.0-liter V6 and 9.4-kilowatt-hour lithium-ion battery pack with a combined 416 horsepower and 435 pound-feet of torque from the Panamera S E-Hybrid. We enjoyed the system when we tested it last year. It's rumored to debut on the SUV sometime this year.

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.