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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.

2021 Ford Mustang Mach 1 revealed, plus driving the BMW M8 Convertible | Autoblog Podcast #632

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Producer Christopher McGraw and News Editor Joel Stocksdale. Before they get to this week's big news, they talk about the cars they've been driving, including the Toyota Land Cruiser, Range Rover Velar SVAutobiography Dynamic Edition, BMW M8 Convertible and BMW 840i coupe. Then they talk about Ford's big reveal of the 2021 Mustang Mach 1. Finally, in lieu of the regular Spend My Money segment, they talk about how Joel recently spent his own money on the newest edition to his personal fleet, a 2013 Volkswagen Beetle. Autoblog Podcast #632 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Cars we're driving: 2020 Toyota Land Cruiser 2020 Range Rover Velar SVAutobiography 2020 BMW M8 Convertible 2020 BMW 840i Fords reveals 2021 Mustang Mach 1 Spend Joel's Money Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video:

VW may make Bentley a subsidiary of Audi

FRANKFURT — Volkswagen plans to make British luxury carmaker Bentley a subsidiary of its Audi division as it seeks economies of scale among its top-end brands, German trade publication Automobilwoche reported. Bentley, for now overseen by the head of VW's Porsche business, Oliver Blume, will from next year be part of Audi, where VW group Chief Executive Herbert Diess believes it has more potential, Automobilwoche cited company sources as saying. Synergies could include using Audi technology for a new Bentley SUV, it added. Volkswagen, which declined to comment on the report, is reviewing the future of its high-performance brands Lamborghini, Bugatti and Ducati motorcycles as part of broader quest for more economies of scale as it shifts to mass producing electric cars. Sources familiar with the matter told Reuters this month that Volkswagen was working on plans to prepare Lamborghini for a stock market listing. Related Video: Audi Bentley Volkswagen