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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 debuts MkVII-based diesel Golf GTD

As Volkswagen prepares for the launch of the seventh-generation Golf, it continues to show off some of the car's different variants. With the standard Golf and the ultra-efficient BlueMotion Concept out of the way, now we're finally starting to see some of the sportier versions planned for the hatchback. Confirmed for a debut at the Geneva Motor Show, Volkswagen has now given us our first glimpse at the Golf GTD.
Just think of the GTD as a diesel version of the GTI with all the handling and styling upgrades, and then add a torquey engine to the equation. (We had the chance to sample the current GTD over the summer, so click here to read more.) To go with the new body style, VW also gave the GTD a new TDI engine consisting of a similar turbocharged and direct-injected 2.0-liter inline-four layout but with an output of 184 horsepower and 280 pound-feet of torque - that's an increase of 14 hp and 22 lb-ft over the current GTD. That's a pretty good oomph, but the GTD won't be setting any acceleration records with VW quoting a 0-62 mile per hour time of 7.5 seconds thanks to the car's 3,036-pound curb weight.
The styling of the MkVII Golf lends itself quite well to the more aggressive body kit found on the GTD (and likely matching the GTI). The new front fascia and blacked-out grille give the GTD a sporty look up front, while 17-inch sport wheels, rocker panel extensions and smoked LED taillights finish off the visual changes. The GTD will only be offered in three exterior colors: Tornado Red, Black and Pure White. As expected, the interior gets the plaid seat inserts and flat-bottomed sport steering wheel, but the car also gets stainless steel pedals, a black headliner, ambient cabin lighting and a specific gauge cluster readout.

VW won't let emissions scandal keep it from racing

The Volkswagen Group may have its hands full dealing with the diesel emissions scandal. But that doesn't mean it will be curbing its considerable racing programs. At least not in any significant way. This according to Matthias Muller, who recently moved up from his previous position as Porsche CEO to preside over the entire group. Speaking with Autosport at the World Endurance Championship finale in Bahrain this past weekend, Muller emphasized the importance of racing to the company. "The motorsports programs are not in danger of being dropped or significantly reduced because motorsports is very important for the group and the brands," said Muller. "Basically we do not question our motorsport efforts." Of all the brands under the group's umbrella, several have prominent, top-level factory works racing programs, and others support customer racing teams. The Volkswagen brand has emerged as the dominant force in the World Rally Championship, securing both titles over the past three years. Both Porsche and Audi compete in the top tier at Le Mans and in the World Endurance Championship, trading places in the winner's circle. Audi also competes in DTM, and alongside Lamborghini, Bentley, and Porsche, and also offers GT3 and GTE racing cars to private customers. Lamborghini, Porsche, Audi, and Seat (once the leader in touring cars) all run their own spec racing series as well. Skoda continues to compete in lower-level rallying, leaving only Bugatti to draw on its prominent pre-war grand prix racing history. To hear Muller tell it, those racing programs – or at least the top-levels ones among them – aren't going away anytime soon. But there may still be some tweaks here and there, and we shouldn't expect any new programs to be launched in the near future. Porsche, for example, is anticipated to wind down its factory involvement in GT racing, after winning both the drivers' and manufacturers' titles in the WEC GTE Pro class this year in addition to its LMP1 victories. Instead it will focus on preparing new racing versions of the 911 for client racing teams. The auto giant was also reportedly close to branching out into Formula One in partnership with Red Bull. But after negotiations were interrupted by emergence of the diesel emissions scandal, that deal fell apart. It remains unknown which brand might have been represented in the F1 engine-supply program.