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Nissan previews new Sport Sedan Concept ahead of Detroit debut

When the Cobo Center opens its doors in a couple of weeks for the Detroit Auto Show, there'll be plenty of new metal on display - and this is the latest.
Nissan announced today that it will bring a new Sport Sedan Concept to the Detroit show, releasing the short statement below accompanied by the teaser image above. Expected to hint at the next Maxima, the concept "previews a new energetic design direction that amplifies Nissan's legendary approach of applying sports car principles to a sedan."
That's about all Nissan is saying for now, so we'll have to wait a while longer to find out more. But the concept will be joined on the show floor by the IDx Freeflow and IDx Nismo concepts that'll be showcased for the first time in North American after their debut at the Tokyo Motor Show over a month ago.

Infiniti brand will finally make its debut in Japan, but not the name

Nissan left the automotive media scratching its collective head when it announced that its Infiniti luxury brand would be renaming all of its vehicles, with cars wearing the Q designation and CUVs/SUVs wearing the QX badge. So the G Sedan became the Q50, and the G Coupe became the Q60. The QX56, meanwhile, became the QX80, and the FX crossover became the QX70. It is still thoroughly confusing nearly a year later.
Not content to confuse its US customers alone, Nissan will be fiddling with the name of one of its most revered Japanese-market models - the Skyline. Rebadged for the US as the Q50, and before that as the G Sedan/Coupe, the new Skyline will wear an Infiniti badge. What makes this truly confusing, though, is that the car won't be called the Infiniti Skyline, despite its badging. It won't even be called the Nissan Skyline, anymore. It's now just the Skyline. Apparently, Nissan thinks it can capitalize on the Skyline's link to the Japanese royal family (the Skyline was originally a product of Prince Motors, which provided vehicles for the Emperor and his family), by ditching any brand names and referring to it as its own model, according to Automotive News.
Now, confusion aside, there are things about Infiniti badging in Japan that make sense. Badging all the Nissans that eventually become Infinitis as Infinitis in the first place goes a long way to make the brand seem separate and distinct from its parent company. Speaking to AN, Infiniti's executive vice president of global product planning, Andy Palmer, puts it this way, "We have to treat Infiniti, if you will, in the same [way] that Volkswagen treats Audi. It's not a Nissan-plus. Infiniti has to stand head-to-head with any of those German competitors."

DC fast charging not as damaging to EV batteries as expected

As convenient as DC fast charging is, there have been lots of warnings that repeated dumping of so many electrons into an electric vehicle's battery pack in such a short time would reduce the battery's life. While everyone agrees that DC fast charging does have some effect on battery life, it may not be as bad as previously expected. Over on SimanaitisSays, Dennis Simanaitis, writes about a recent presentation by Matt Shirk of the Idaho National Laboratory (INL) called DC Fast, Wireless, And Conductive Charging Evaluation Projects (PDF) that describes an ongoing test of four 2012 Nissan Leaf EVs that are being charged in two pairs of two. One pair only recharges from 50-kW DC fast chargers, which the other two sip from 3.3-kW Level 2 chargers exclusively. Otherwise, the cars are operated pretty much the same: climate is automatically set to 72 degrees, are driven on public roads around Phoenix, AZ and have the same set of dedicated drivers is rotated through the four cars. "Degradation depends more on the miles traveled than on the nature of recharging." What's most interesting are the charts on page seven of Shirk's presentation (click the image above to enlarge), which show the energy capacity of each of the four vehicles. When they were new, the four batteries were each tested to measure their energy capacity and given a 0 capacity loss baseline. They were then tested at 10,000, 20,000, 30,000 and 40,000 miles, and at each point, the DC-only EVs had roughly the same amount of battery loss as the Level 2 test subjects. The DC cars did lose a bit more at each test, but only around a 25-percent overall loss after 40k, compared to 23 percent for the Level 2 cars. Simanaitis' takeaway is that, "INL data suggest that the amount of degradation depends more on the miles traveled than on the nature of recharging." The tests are part of the INLs' Advanced Vehicle Testing Activity work and a final report is forthcoming. These initial numbers from IPL do mesh with other research into DC fast charging, though. Mitsubishi said daily fast charging wouldn't really hurt the battery in the i-MiEV and MIT tests of a Fisker Karma battery showed just 10-percent loss over 1,500 rapid charge-discharge cycles.