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Japan plans real-world diesel emissions test after companies fail

Japan's transport ministry plans to start real-world diesel emissions tests after an experiment found four models from Toyota, Nissan, and Mitsubishi that produced more nitrogen oxide (NOx) emissions than the nation's rules allow, according to The Japan Times. Regulators there usually only perform emissions checks in the lab. The VW diesel scandal has everyone double-checking their figures. Diesel versions of the Toyota Hiace van, Land Cruiser Prado, and Nissan X-Trail produced up to 10 times more NOx than allowed. The Mitsubishi Delica D:5 was up to five times over the limit, The Wall Street Journal reports. There was no evidence of defeat devices in the vehicles. Mazda performed well in the experiment, though. The CX-5 passed with nearly the same results on the road and in the lab. The Demio, better known as the Mazda2, did nearly as well with only slighter higher figures in the real world than in the controlled setting. The experimenters theorized the reason for the excessive emissions was that cold weather caused the engines' software to shut off the exhaust gas recirculation to prevent damage, according to the WSJ. However, this behavior also increased NOx production. Toyota, Nissan, and Mitsubishi don't have to worry about punishment from the transport ministry because this check was just an experiment. Their models already passed the mandated lab tests, which was the only requirement, according to The Japan Times. As governments begin greater real-world emissions tests, the results suggests diesels aren't very clean. A recent check in France found models from Ford, Renault, and Mercedes-Benz that didn't perform up to the standards. Regulators in India conducted similar evaluations and ordered VW to recall over 300,000 vehicles. Related Video:

Mazda Koeru concept forecasts next CX-9 in sleek form

Mazda rolled in to the Frankfurt Motor Show this year with the Koeru concept you see here. The showpiece is the latest embodiment of the Japanese brand's Kodo design language, applied with dramatic effect to a large crossover shape. Could this preview the next CX-9? The Koeru takes its name from the Japanese verb for "going beyond," and the reason is plain to see: though created by a mass-market brand, the concept could easily belong to an upscale marque like Infiniti (which offers a range of crossovers), Jaguar (which just revealed its first), or Maserati (which is preparing to get in on the action as well). It strikes us as aggressive as it is elegant, with taut lines and sporty details from the sharp lights to the muscular wheel arches. Few technical details as to what lies underneath it all were made available. And these show cars often lack working underpinnings to speak of anyway. But Mazda says that, beyond the styling, it optimized the aerodynamics over the upper body as well as underneath it to reduce turbulence and "enhance vehicle stability when driving at speed." It's also said to encompass the company's latest Skyactiv, i-Activesense, and Mazda Connect technologies. Which is all well and fine, but we're looking forward to seeing what innovations the company might incorporate if and when the Koeru (hopefully) transitions from concept to reality. In the meantime you can scope it out in the live and stock image galleries above and below. MAZDA KOERU The all-new crossover concept proposed by Mazda Mazda Motor Corporation is unveiling the all-new crossover concept Mazda KOERU for the world premiere at the Frankfurt Motor Show this year. The Mazda KOERU demonstrates Mazda's unique and daring interpretation of a crossover vehicle, proposed for the fast-growing crossover market. Featuring the full suite of Mazda's new-generation SKYACTIV technologies and designed under the KODO—Soul of Motion design language, the concept offers sporty yet delightfully refined styling and driving performance. The name "KOERU", which literally means "exceed" or "go beyond" in Japanese, comes from Mazda's aspiration to deliver value that goes well beyond the existing category norms and standards. As the latest incarnation of Mazda's new-generation products, the Mazda KOERU crossover concept offers styling that exudes power, vitality and a new level of polished refinement.

Autoblog Minute: Highlights from the 2015 Tokyo Motor Show

The 44th Tokyo Motor Show is here with plenty of exciting new car reveals, like the stunning Mazda RX-Vision concept and the wild Nissan Concept 2020 Vision Gran Turismo. Autoblog's Chris McGraw reports on this edition of Autoblog Minute, with commentary from Autoblog's Managing editor, Steven Ewing. Show full video transcript text [00:00:00] The 44th Tokyo Motor Show is here with plenty of exciting new car reveals and lots of tech-heavy concept vehicles. I'm Chris McGraw and this is your Autoblog Minute. The Tokyo Motor Show opens to the public but for those unable to make it to Japan Autoblog is on hand to report. For more we go on location to Tokyo and Autoblog's Managing editor, Steven Ewing. [00:00:30] - [00:01:00] [Steven Ewing Interview] And that's your recap of the 44th Tokyo Motor Show, for our detailed coverage of the event be sure to head to Autoblo.com/tokyo-motor-show. For Autoblog, I'm Chris McGraw. [00:01:30] [Outro] Autoblog Minute is a short-form video news series reporting on all things automotive. Each segment offers a quick and clear picture of what's happening in the automotive industry from the perspective of Autoblog's expert editorial staff, auto executives, and industry professionals. Green Tokyo Motor Show Mazda Subaru Suzuki Coupe Concept Cars Autoblog Minute Videos Original Video Tokyo 2015