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Shelby GT350R offers first mass-produced carbon fiber wheels

In the world of race engineering, reducing total weight is good, but reducing unsprung weight is flippin' fantastic. That's the reason Ford is pushing the envelope in terms of technology for the Shelby GT350R's wheels. Joining the likes of Koenigsegg in the offering, Ford has teamed with Australian outfit Carbon Revolution to produce the CF rollers en masse for the first time. Destined for the hubs of the new Shelby GT350R, the new hoops weigh just 18 pounds each, versus the 33-lbs weight of a similar aluminum wheel. On top of slashing up to 60 pounds in unsprung weight, there's such a reduction in rotational inertia – 40 percent, versus aluminum wheels – that Ford actually has to recalibrate the magnetic ride control system and springs. Thanks to, we're guessing, scenes of crashed Formula One cars disintegrating and spewing shards of carbon fiber all over the track, Ford seems quite keen to do away with the idea that CF is strong, but brittle. The company conducted extensive shock testing, ramming a wheel into a curb at speed. According to the Blue Oval, the lightweight wheel allowed the suspension to respond so quickly that the impact was "greatly diminished," causing the tester to run the experiment again, thinking there'd been a mistake. After recording brake rotor temperatures of 900 degrees Celsius (over 1,650 degrees Fahrenheit, or well past the point that aluminum or magnesium would melt) during testing, Ford and Carbon Revolution actually redesigned the wheels to "a thermal standard more suitable for motorsports," by adding an "incredibly thin, nearly diamond-hard coating that reliably shields the resin from heat." The same process was used to protect engine turbine blades on the Space Shuttle. While the work by Ford and Carbon Revolution should make GT350R customers excited, the work being done here could have serious implications for performance cars in the future. That's the real takeaway here, and is something that should leave fans of all performance vehicles excited.

This Or That: Fiat 500 Abarth vs. Ford Fiesta ST [w/poll]

They're pretty darn similar. And yet our views are oh so different.
If you guys could read the transcripts of our editors' chat room, you'd know that we're a pretty argumentative bunch. It's always good-spirited stuff (well, usually), but when we're not obsessively covering this or that, we're usually fighting about one car being better than another. We're all enthusiasts here, and our automotive tastes run the gamut from the weird and unusual to the decidedly mainstream - we all feel strongly about specific cars in a given segment. While it usually makes for good conversation, if we're passionate enough, it can turn into a tomato-throwing showdown.

Recharge Wrap-up: Tesla details factory expansion; Ford and SunPower raise money for Sierra Club

Tesla has revealed the details of the upgrade of its Fremont, CA factory. One major change is the addition of a dedicated production space for the dual-motor P85D version of the Model S. Robots will be doing the battery installation on the Model S to save some time, and new export docks allow Tesla to get the cars out the door and on the way to their new owners more quickly. The new robots that move the cars around the factory have been named after X-Men characters, which makes our inner geeks smile. Check out the factory upgrade in the time-lapse video below and read more at Teslarati or at the Tesla Motors Blog. A program in Beijing for privileged registrations for EVs hasn't had much success. Of the 1,424 lottery winners, only about 30 percent went on to register an electric car despite a two-month extension of the deadline to do so. Buyers are likely discouraged by the lack of charging infrastructure, which the city hopes to ameliorate with the addition of 1,000 new charging stations by the end of the year, and by requiring new and renovated developments to set aside parking specifically for EV charging. Read more at Green Car Reports. The UC Davis Institute of Transportation Studies suggests that laws designed to protect dealers and consumers are stymieing the adoption of EVs. Laws like the ones certain states have in place that block or otherwise restrict Tesla's direct-to-consumer business model are not helpful for companies that want to introduce new products to the market. They prevent companies from passing on savings to customers for whom they would likely make the difference in a purchasing decision. One possible solution would be to allow exemptions to certain selling restrictions for a certain number of vehicles sold. "This could give automakers the degree of control needed to work out kinks with early customers, develop scalable processes for supporting PEVs, and ensure that effective dealer performance standards are in place before handing the reins over to wholly independent retailers," according to UC Davis ITS. Read more at the UC Davis website. Volkswagen says its environmental program, called "Think Blue. Factory," is meeting the automaker's own sustainability targets. The main purpose of the program is to move toward eco-friendlier carmaking at each of its plants worldwide.