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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.

Car companies may need to start curbing model proliferation

Looking at the current automotive landscape, especially from German makers, you quickly get the impression that less definitely isn't more. BMW alone offers its 3 Series platform in practically every segment possible, including the regular sedan and 4 Series Gran Coupe, which would seem to be direct competitors. Porsche might be the winner, though, with 20 different variants of the 911 listed for sale on its US website. However, some of this model madness might be reaching an end as companies begin cutting back spending or shifting money to other priorities.
According to Yahoo Finance, the offerings from the German automakers are up 25 percent over the past three years to over 200 models in Europe. The peak is expected to come around 2018 at 230 separate vehicles, according to consulting company PwC.
Amazingly, BMW, which is among the poster children for this model explosion, might be changing its tune. "I'm sure there will be points in the future where we look at certain cars and say, 'Maybe we need to think differently now,'" said head of sales Ian Robertson in an interview, according to Yahoo Finance. The statement certainly sounds shocking coming from a company rumored to have 23 front-wheel-drive vehicles all using a single platform on the way.

Ten of the greatest Super Bowl car commercials of all time

With an average of over 100 million viewers each year, the Super Bowl always has advertisers bringing out the big guns. And for those among us who don't know the difference between a safety and a touchback, those commercials can be one of the most compelling aspects of the annual ritual. Car companies, in particular, have a long history of making the most of the huge Super Bowl audience by debuting some of the most memorable advertisements that have ever aired on television. So, in preparation for the new batch we'll be seeing this coming Sunday, here's a collection of our favorites from the past. 10. Audi – The Godfather When Audi created this homage to the quintessential gangster movie to promote its newest sports car, the company managed to make a commercial that was simultaneously funny, a little bit disturbing, and most importantly memorable. 9. Maserati – Strike This one might start out slow, but it delivers not only with the wicked sound of the third-generation Ghibli's engine, but with an interesting message about hubris in the auto industry as well. 8. Nissan 300ZX Twin-Turbo – Dream Directed by none other than Ridley Scott (Blade Runner, Alien), this dystopian spot has centers around a narrator who explains that in his dream the bad guys are unable to catch him despite their best efforts by way of street bikes, race cars, and supersonic jets. While the twin-turbocharged 300ZX car was certainly a performance powerhouse to be reckoned with in its day, the concept and execution of this one does come off a little bit campy now – but in a good way. Then again, it is a dream, after all. 7. General Motors – Robot This one is unique in that it's genuinely depressing on a profound level. Who would've thought that the simulated suicide of a lovable, anthropomorphic car-building robot who has fallen on hard times could be such a downer? 6. Nissan – With Dad Although the debut season of its new LMP1 racer didn't exactly turn out how the team hoped it would, there's no denying that Nissan's depiction of a strained father-and-son relationship that eventually leads to redemption (and the introduction of the 2016 Maxima) tugs at the heartstrings. 5. Volkswagen – Big Day A surprisingly poignant advert, this one might be low on dialogue but it certainly gets its message across. And just as the dramatic soundtrack begins to lull the viewer into a sense of security, our expectations are upended. 4.