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West Virginia researcher describes how Volkswagen got caught

The cheating scandal engulfing the world's largest automaker started with a road trip. In the spring of 2014, researchers from West Virginia were evaluating the tailpipe emissions of diesel cars made for the American market by European manufacturers, something never before studied in the academic realm. Excited by the prospect of breaking new ground, the team of two professors and two students wanted to gather as much data as possible. "And being academics, we went a little overboard," said Arvind Thiruvengadam, one of the students. "Being academics, we went a little overboard." Overboard included driving the cars for more miles than they needed to test and verify results. Drivers put about 1,500 miles on each of the first two cars in the study, a Volkswagen Jetta and BMW X5, along California roadways. For their final car, a Volkswagen Passat, they wanted even more mileage. So they took the car on a road trip from Los Angeles to Seattle and back again, collecting data from more than 2,000 miles of testing. The road trip was Volkswagen's undoing. When the West Virginia team returned to Los Angeles, they were befuddled by the test results. In theory, the Passat should have spewed the lowest levels of pollutants among the three cars. Equipped with the more modern selective catalytic reduction technology, the team expected to find minimal levels of nitrogen oxide. But the car, which had been certified at a California Air Resources Board facility prior to the start of the road trip, had elevated levels of NOx that were 20 times the baseline levels established beforehand. The researchers, comprised of professors Gregory Thompson and Dan Carder and students Marc Besch and Thiruvengadam, knew their on-board equipment functioned properly because, early in their research, they had double-checked its accuracy after recording sky-high NOx readings from the Jetta that showed 30 times the level of its baseline testing at the CARB facility. It was particularly noteworthy because the Jetta contained the first-generation Lean NOx Trap technology, not the more efficient SCR, yet both produced large discrepancies. The BMW, on the other hand, performed as expected. Today, Thiruvengadam is careful to say the research team never suspected Volkswagen of cheating on emissions testing, nor did the researchers report such a finding. They merely reported their findings to CARB officials who then further investigated.

Autoblog Podcast #370

Episode #370 of the Autoblog podcast is here, and this week, Dan Roth, Michael Harley and Craig Fitzgerald of BangShift and Boldride talk about the 2015 Jeep Renegade, the Consumer Reports list of Cars to Avoid, and the Geneva Motor Show, which opened today. 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 #370: Topics: 2015 Jeep Renegade Worst Cars of 2014 Geneva Motor Show preview In the Autoblog Garage: 2014 Volkswagen Jetta SE 2014 SRT Viper 2015 Subaru WRX Hosts: Dan Roth, Michael Harley Guests: Craig Fitzgerald Runtime: 01:28:37 Rundown: Intro and Garage - 00:00 Jeep Renegade - 27:28 Cars to Avoid - 41:46 Geneva Motor Show - 59:54 Q&A - 01:11:04 Get the podcast: [UStream] Listen live on Mondays at 10 PM Eastern at UStream [iTunes] Subscribe to the Autoblog Podcast in iTunes [RSS] Add the Autoblog Podcast feed to your RSS aggregator [MP3] Download the MP3 directly Feedback: Email: Podcast at Autoblog dot com Review the show in iTunes Podcasts Geneva Motor Show Jeep Subaru Volkswagen Concept Cars worst cars

VW planning 20 new plug-in models for China

With just about everything getting super-sized for China, Volkswagen is following suit with its plug-in vehicle plans for the world's most populous country. VW, Europe's largest carmaker, is looking to sell more than 20 different plug-in models in China within the next four years, Reuters says, citing comments Volkswagen Group China head Jochem Heizmann made in Shanghai. The company is hoping that translates to sales of more than 100,000 plug-ins in China by the end of the decade. Go big or go home, right? There's a huge plug-in vehicle opportunity in China, especially given the bad pollution situation in cities like Beijing and Shanghai and the Chinese government's incentives for plug-in vehicle buyers. Volkswagen CEO Martin Winterkorn said at the Beijing Motor Show this spring that the company would spend $25 billion on at least a half-dozen plug-in models for China by 2018. VW will start selling the e-Golf in China this year and the Golf GTE plug-in hybrid in 2015. VW said in August that it would start selling the e-Golf in the US for about $35,500 in November. That's a $6,500 price hike from the base Nissan Leaf.