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VW decides against active-cooling system for e-Golf lithium battery

When the 2015 VW e-Golf was introduced at the LA Auto Show last year, VW said it would come with a water-cooled battery. During the Detroit Auto Show, when the car was trotted out again, VW released a new press release that stripped out the "water-cooled" language, but this change went unnoticed. During a recent VW event in Germany, a friend from Green Car Reports realized that the battery on display did not seem to have any water-cooling mechanisms. That set us off on a bit of a sleuthing and we have now learned that VW is not going to include any active cooling in the upcoming e-Golf. In fact, the company is entirely confident that this car - because of what it's designed to do - doesn't need it. "The need for a cooling system wasn't there" - VW's Darryll Harrison VW has been working on an electrified Golf for ages now, and so changes to the plan are to be expected. But battery cooling is vitally important not just to keep the car operating properly but because when things get too hot, there can be serious public relations problems. Nissan began testing a new battery chemistry for the Leaf in 2013 after an uproar from warm-weather EV drivers in Arizona who were experiencing worse-than-expected battery performance. The Leaf has always used an air-cooled battery, which is another way to say that there is no active cooling system (more details here). Tesla CEO Elon Musk once said this approach is "primitive." So, why is VW following the same path? We asked Darryll Harrison, VW US's manager of brand public relations west, for more information, and he told AutoblogGreen that VW engineers discovered through a lot of testing of the Golf Mk6 EV prototypes, that battery performance was not impacted by temperatures when using the right battery chemistry. That chemistry, it turns out, is lithium nickel manganese cobalt oxide (NMC) in cells from Panasonic. These cells had "the lowest self-warming tendency and the lowest memory effect of all cells tested," Harrison said. He added that VW engineers tested the NMC cells in places like Death Valley and Arizona and found they didn't warm very quickly either through operation, charging (including during fast charging) or through high ambient temps. "The need for a cooling system wasn't there," Harrison said.

The hottest modern sports cars rendered as rally racers

The modern-day World Rally Championship a monumental amount of fun to watch – I should know, as I recently was lucky enough to head to the UK to watch WRC Wales Rally GB – but even the most monstrous of the current WRC cars are based on fairly pedestrian European hatchbacks. Back in the heyday of rally, the Group B era in the 1980s, much hotter cars were the basis of even more incredible competition machines, for the most part. Take the exotic Ford RS200, or the Lancia Delta S4 with its twin-charged engine. And the hatchback-based Group B cars were bonkers, too. So what would some of our favorite modern cars look like if Group B had never ended? A British site named CarWow hired an artist to reimagine everything from the Rolls-Royce Wraith to the Porsche 911 as a retro-inspired rally car, and they were kind enough to let us share the results in the gallery above. The gallery features an Alfa Romeo Giulia in Martini livery, an Audi TT in classic Ur-Quattro colors, a Fiat 500 Abarth sporting massive flares and a hood blister full of auxiliary lights, a new Ford Mustang in RS200 livery, a Lancia Delta in Alitalia colors, a Porsche 911 in Rothmans livery, a Renault-Alpine in classic blue, a Rolls-Royce Wraith tribute to the Jules cologne Corniche Coupe, and a relatively modern-looking VW Touran. So far, the favorite around the office is the incredible Mercedes-Benz S-Class that is an homage to the wonderful 300 SEL 6.8 AMG "Red Pig" that essentially put AMG on the map. Check out the gallery above and see which one you like the best. Related Video:

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.