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Why it's difficult to accurately test the efficiency of a plug-in car

When it comes to electric vehicles and plug-ins in general, the Environmental Protection Agency-certified range is a hugely important number. While actual range anxiety is largely psychological, the magic number does provide a point of comparison of buyers considering one EV over another. The driving distance is also often touted by automakers when marketing their models. Unfortunately, as Green Car Reports finds in a recent deep dive, the way the EPA calculates the figure is a convoluted mess, and discovering the reasons why is definitely worth the read. The issue isn't about bad science but instead comes down to vague wording. The EPA's accepted range test is sourced from an evaluation called J-1634 from the Society of Automotive Engineers, and it seems to provide balanced results for vehicles that automatically reach a single state of charge when plugged in. However for models with multiple charge settings, the situation gets complicated very quickly. Of course, these modes are often created in the software, meaning that a car's certified driving distance can change with just a few taps of the keyboard without the real world results owners might experience actually changing. By showing the test's effects on the certified range for the Tesla Model S, Nissan Leaf and Mercedes-Benz B-Class Electric Drive over the last few years, Green Car Reports makes a compelling argument that it's the evaluation that needs to change. Thankfully, it appears that the solution is a very simple one. Get the details here.

Michigan gets into anti-Tesla legislation game

If you figured the home of the US car industry would be against messing with the age-old, franchised-dealer auto distribution system, you'd be right. Michigan, home to the Big Three US automotive companies (General Motors, Ford, Chrysler, now Fiat Chrysler), is moving towards officially disallowing companies like Tesla Motors from selling their cars directly to consumers, according to the Wall Street Journal. Tesla will naturally fight this, but it's one more challenge for the California-based automaker. Both chambers of Michigan's legislature approved bills banning automakers from selling cars to the public without doing so through a third-party franchised dealership. Tesla once again will rally against this, arguing that the uniqueness of its electric vehicles prevents third-party dealers from properly marketing the cars. Legislation like this continues to make its way through various states, with varying degrees of approval. Last month, the Georgia Automobile Dealers Association stated its intention to shut down Tesla's one state store and prevent two planned outlets from opening. Texas, New Jersey, Maryland, Virginia and Arizona have also taken a hardline approach to preventing direct automaker-to-public sales. Tesla has worked out compromises in other areas, for example with Pennsylvania in August. There, electric vehicles are now exempted from the franchised-dealer mandate.

Tesla hires Hacker Princess Kristin Paget away from Apple

Might it be that one of Apple Computer's software-security gurus wasn't quite, ahem, secure enough to resist the pull of Tesla Motors CEO Elon Musk? Kristin Paget, who held the illustrious title of "Hacker Princess" at Cupertino, CA-based Apple, starts working for nearby Tesla this week, Re/code says. Paget would only say on her Twitter feed that the gig was "something security-related" and added that she "shouldn't say too much." Paget would only say that the gig was "something security-related." Paget joined Apple in 2012 after spending time with Microsoft, where she was responsible for security in the Vista operating system. Paget was also known within the Silicon Valley cognoscenti for her instructions on how to build a fake cell tower that could intercept cellphone calls. Tesla's headquarters in Fremont are just 25 miles from Apple's, but the poaching is far more than merely geographic. Tesla has always been big on technological advancements and has been steadily making over-the-air software upgrades to the Model S. Most recently, Musk and Tesla Chief Technology Officer Straubel toured Western Europe, talkind to Tesla owners and followers. They said the company was on the cusp of releasing Version 6.0 of the Model S software, which includes more suspension control as well as real-time traffic data. We wonder what features Paget will bring to Version 7. Featured Gallery Tesla Model S: Quick Spin View 33 Photos News Source: Re/code via Pulse2Image Credit: Copyright 2014 AOL Green Tesla Electric microsoft security software