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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.

Volkswagen Golf Wagon caught completely uncovered

Without a lot of information to go with them, our camera-toting spies have captured some new images of a Volkswagen Golf wagon variant that is almost completely undisguised. In fact, the one piece of camouflage on the tidy wagon would probably have gone unnoticed to most casual viewers. Look closely at the rear three-quarter view of the car and you'll notice that the apparent taillight clusters are actually fakes - the outline of the real units is faintly visible behind the blue bodywork and the sticker-like fake taillights.
It's a good guess then, that this Golf wagon (called a Golf Kombi by our spy photographer) is a prototype that's pretty far along in the development cycle for Volkswagen. We can't be sure what impact this will have on the company's small wagon offering here in the US, but we'd be pretty surprised if something very like this didn't end up as the next Jetta SportWagen. We might well have more information on that front, after we visit Geneva next week.

Five reasons to love, or hate, the culture of German cars

A few months back, we took a 500-foot view of the culture of American cars, dissecting prides and prejudices on our way to the conclusion that automotive allegiances can be simultaneously embraced and derided. We had so much fun with the narrative that we decided to do it again, this time taking a look at Germany and its world-renowned lineup of automakers, including the likes of Audi, BMW, Mercedes-Benz, Porsche and Volkswagen, among others. Join us below as we discuss the points and counterpoints that make or have made the German auto industry what it is today. And remember, Germany did pretty much invent the automobile, after all... The V12 Engine If America is known for the proliferation of the V8 engine, an argument could be made that Germany owns the V12. Yes, of course, other companies have created V12 engines – Ferrari, Jaguar and Lamborghini immediately come to mind – but the big 12-cylinder powerplants from BMW and Mercedes-Benz, in particular, have proven to be some of the most effortless, luxurious and downright over-built engines the world has ever seen. These days, having 12 cylinders is more a case of wretched excess than ever before, and yet, you can still stroll into your local BMW or Mercedes dealership and get a brand-new 760i, S600 or even an over-the-top G65 AMG, efficiency be damned. Best of all, since the majority of these German powerhouses depreciate as fast as an anchor sinks, nearly any auto enthusiast who dreams of a dozen cylinders can satisfy their carnal desires. Current Star: 2016 Mercedes-Maybach S600 View 28 Photos Diesel Engines Remember how we talked about those glorious V12 engines? Well, you can even get one from Audi that runs on diesel. If your compression-ignition fantasies err more on the side of fuel savings, that's no problem, either. Audi, BMW, Mercedes and Volkswagen have got you covered, with engines starting as small as 800 cubic centimeters (Smart Fortwo). If you want something a little more practical, it's hard to argue with a VW Golf TDI, which will provide plenty of space for you and three of your best friends, plus a fair bit of luggage, all while returning 50-ish miles per gallon. For the purposes of this discussion, we'd rather focus on the asinine levels of torque provided by Germany's high-end diesel engines than the lower-end fuel sippers.