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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.

Nissan, Infiniti will each show a next-gen concept EV in Detroit

The chief designer for Nissan and Infiniti said Wednesday that both brands will debut concept electric vehicles at the 2019 North American International Auto Show in Detroit in January that will likely show off Nissan's next-generation electric drive systems and the evolution of the brands' EV design direction first hinted at with Infiniti's stunning Q Inspiration. Alfonso Albaisa, senior vice president of global design for Nissan, said the concepts will reflect a similar departure from standard vehicle proportions as the Q Inspiration. He would not say exactly what segment or segments the concepts would represent, but he dropped some hints at a couple possible powertrains for the concepts. Similar additional concepts will follow later in the year at the Tokyo Motor Show, he said. "The Q Inspiration kind of hinted at it and we avoided discussing too much about what's driving that car. Of course, we talked about VC-Turbo, which is also possible," he said in an interview with Autoblog. "But if you really look at the car, Q Insipiration shifted the cabin forward. It was the first one to break the [mold] of Infiniti. So how to still have this artistry and this sense of carrozzerie" (Italian for coachbuilding) "of Infiniti without kind of the stereotypical long hood and the cabin shifted back and the windshield has to go through the center of the front wheel, these golden rules." Infiniti debuted the Q Inspiration concept sedan in Detroit in January, with a swoopy, ghost-like design influenced by an archer shooting an arrow through the air, and innovative design features like an elongated cabin that expands interior space, a relative lack of chrome, and other features. It's powered by a compact variable compression turbocharged engine, which can change compression ratios on the fly to maximize efficiency and power, depending on the situation. But Albaisa said the two concepts for Detroit could feature Nissan's e-Power series hybrid technology, which has mostly featured in Japan, and which features small, isolated gasoline engines that exist only to charge the batteries, not drive the wheels. They will also feature a new generation of battery packs, which he calls a "magic carpet." "It's getting denser, it's getting thinner, the cars are able to get a little bit bigger, more space, we can really do much more," he said.

Nissan, Renault break up the Ghosn-style almighty chairmanship

YOKOHAMA, Japan — Japan's Nissan Motor and France's Renault said they would retool the world's top car-making alliance to put themselves on more equal footing, breaking up the all-powerful chairmanship previously wielded by ousted boss Carlos Ghosn. The removal of Ghosn, credited for rescuing Nissan from near-bankruptcy in 1999, had caused much uncertainty about the future of the alliance and some speculation the partnership could even unravel. The companies, together with junior ally Mitsubishi Motors, on Tuesday said the chairman of Renault would serve as the head of the alliance but — in a critical sign of the rebalancing — not as chairman of Nissan. "This is a very special day for the alliance," Renault SA's chairman, Jean-Dominique Senard, told reporters after a meeting at Nissan's Yokohama headquarters. He spoke to reporters along with Renault's chief executive, Thierry Bollore; Nissan CEO Hiroto Saikawa; and Osamu Masuko, CEO of the smaller Japanese alliance partner Mitsubishi Motors Corp. Those four executives will meet every month in Paris or Tokyo and oversee various projects, helping to make the companies' operations more efficient, they said. Nissan has said that Ghosn wielded too much power, creating a lack of oversight and corporate governance. It was not clear who would become Nissan's chairman, vacant since Ghosn was arrested in Japan in November. But the automakers gave no indication of any immediate change in their cross-shareholding agreement, one which has given smaller Renault SA more sway over Nissan. The alliance did not announce any changes in mutual stake holdings. The so-called Restated Alliance Master Agreement that has bound them together so far remains intact, they said. "We are fostering a new start of the alliance. There is nothing to do with the shareholdings and the cross-shareholdings that are still there and still in place," Renault Chairman Senard said. "Our future lies in the efficiency of this alliance," he told reporters at Nissan's headquarters in Yokohama. Senard also said he would not seek to be chairman of Nissan, but instead was a "natural candidate" to be vice-chairman. Former Nissan chairman Ghosn was released on a $9 million bail last week after spending more than 100 days in a Tokyo detention center.