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Autoblog Podcast #366

Episode #366 of the Autoblog podcast is here, and this week, Dan Roth, Jeff Ross and George Kennedy of Boldride.com talk about the 2015 Lincoln Navigator, Volkswagen's US market woes, and the drama at the Rolex 24 hours of Daytona. We start with what's in the garage and finish up with some of your questions, and for those of you who hung with us live on our UStream channel, thanks for taking the time. Check out the new rundown below with times for topics, and you can follow along after the jump with our Q&A. Thanks for listening!
Autoblog Podcast #366:
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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.

Skoda launching two new CNG-powered vehicles in Europe in June

Skoda's second- and third-ever production compressed natural gas (CNG) vehicles aren't exactly speed burners, but they are efficient. The Czech automaker, which is owned by Volkswagen, will introduce its Octavia G-TEC and Octavia Combi G-TEC models to most of Europe next month. Skoda's first CNG model was the Citigo, which debuted in 2012. The Octavia models will have a turbocharged 1.4-liter engine that will deliver about 109 horsepower. Quickness isn't these cars' virtue, as their 0-60 mile per hour acceleration time will be almost 11 seconds. But they can go as far as 826 miles on their tanks of gas and CNG, enough to go from Prague to Rome in one shot, in case anyone was curious. Or nuts. The move by Skoda makes sense, as the CNG market in Europe has long been far further along than it is on this side of the pond, where CNG has primarily been used to move delivery trucks, but it's now available in pickups form Chrysler, Ford and General Motors as well as passenger cars from Chevy and Honda. The Skoda Citigo has moved almost 2,000 units since its debut, with 1,300 vehicles sold last year alone. That car can go as far as 385 miles on CNG and gasoline combined, which is impressive but not quite as bladder busting as the Octavia models. Check out Skoda's press release below. SKODA continues its CNG offensive with the new SKODA Octavia G-TEC Launch of the new SKODA Octavia G-TEC and new Octavia Combi G-TEC in June First SKODA Octavia with natural gas drive as standard; 97 g CO2/km High-performance technology: bivalent turbo engine 1.4 TSI/81 kW The ultimate in fuel economy: up to 1,330 km with natural gas and petrol SKODA Citigo G-TEC has enjoyed market success since 2012; only 79 g CO2/km Natural gas is the environmentally-friendly, cost-effective alternative Mlada Boleslav, 19 May 2014 – Expanding its environmentally-friendly model range, SKODA is renewing its emphasis on compressed natural gas vehicles. The new SKODA Octavia G-TEC and the new SKODA Octavia Combi G-TEC will be given their market premiere in June. This will increase the brand's CNG range to three models. Since the end of 2012, the little natural gas-drive Citigo has been successfully touring the European markets. "With the new Octavia G-TEC and the Octavia Combi G-TEC, our model range is becoming even more environmentally-friendly," says Dr Frank Welsch, SKODA Board Member for Technical Development.