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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.

Volkswagen Golf R 400 will come to US

If you're like us, and have been drooling over the Volkswagen Golf R 400 concept since it was first unveiled in Beijing last year, we've got some potentially good news for you. Dr. Heinz-Jakob Neusser, member of the board of management responsible for development at Volkswagen, told Autoblog that the Golf R 400 will definitely come to the US... if it gets the production green light, anyway. Neusser says that the US market has had a hugely positive reaction to the seventh-generation Golf family. The new hatch won both Motor Trend Car of the Year and North American Car of the Year, and Volkswagen has expanded the Golf range to include a bunch of new variants, including the electric e-Golf and recently released SportWagen. The Golf R 400 would "fit very well into this strategy," says Neusser. The hotter Golfs have been successful, too. When Volkswagen opened the order books for the 2015 Golf R, the yearly allocation for the US sold out in just 11 hours. Neusser says the R 400 will "show how sporty the Golf family can be." We're certainly in favor of this hottest hatch hitting our market. All we need now, is for Volkswagen to officially give it the go-ahead.

Volkswagen rules out Eos successor

When Volkswagen introduced the Eos back in 2006, hard-top convertibles were all the rage – in North America, in Europe and around the world. But the trend, billed at the time as the best of both worlds, has long since subsided, leading to VW axing the Eos several months ago. And don't count on it getting a successor at some point down the line, either. At the Detroit Auto Show earlier this week, VW R&D chief Heinz-Jakob Neusser told Autocar that the Eos is down for the count. In fact it is "maybe the first model we take out of the market" in a reversal of the momentum that has seen the German automaker expand its lineup incrementally over the past several years – although the Chrysler-built Routan minivan was also canceled around the same time. The place the Eos occupied in VW's North American lineup is largely being taken by the more charismatic Beetle Convertible, and in Europe and other markets by the Golf Cabriolet that's still based on the previous-generation hatchback. The Eos, however, isn't the only hard-top convertible withdrawn from the market in recent years. Tin-top cabrios like the Lexus IS and SC, Cadillac XLR, Chrysler 200, Pontiac G6 and Volvo C70 have all gone the way of the dodo – as have Euro-market coupe-convertibles versions of models like the Ford Focus, Opel Astra, and Peugeot 207. The arrival of the Buick Cascada just goes to show that soft-roofed convertibles have won out, particularly as far as four-seat cabrios are concerned. The one notable exception where folding hard-tops are still gaining traction is among mid-engined exotic supercars like the Ferrari 458 and McLaren 650S, both of which opted for solid folding roofs instead of fabric ones. We've yet to see, however, which approach Lamborghini will take with the Huracan Spyder or Audi will with the next-generation R8, the predecessors of both of which featured fabric roofs.