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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 brings slick sports-car concept to Tokyo

Mazda teased a slick spots-car concept Wednesday that will debut at the 2015 Tokyo Motor Show. The as-yet unnamed concept promises to blend elements from the company's heritage with a sleek and modern shape. It apparently takes the form of a front-engine, two-door coupe – always a favorite configuration – with a sloping roofline and classic hood-to-greenhouse ratio. It'll be displayed alongside the Koeru concept (which returns home for its Japanese debut), a handful of MX-5 Miatas, and a classic 1967 Cosmo Sport 110S – the marque's original, rotary-powered sports car. We have a good feeling that it's the latter from which the new concept principally draws its inspiration, albeit with different dimensions than the long-tailed original - and hopefully a little RX-7 thrown in for good measure. We'll have to hold on a while longer to find out, but we're looking forward to seeing the finished product. Mazda to Unveil New Sports Car Concept at Tokyo Motor Show -- Japan-debut of Mazda KOERU and racing-spec Mazda Roadsters among fourteen models on display -- HIROSHIMA, Japan, Sept. 29, 2015 /PRNewswire/ -- Mazda Motor Corporation will hold the world premiere of a new sports car concept model at the 2015 Tokyo Motor Show, which runs from October 30 through November 8.*1 A total of 14 models will be on display at the Mazda stand, including crossover concept Mazda KOERU making its first appearance in Japan, two racing-spec Mazda Roadsters (known as Mazda MX-5 outside Japan) and the Cosmo Sport (110S outside Japan), first introduced in 1967. The design of the sports car concept to be unveiled in Tokyo is modern but maintains a sense of lineage and authenticity, appearing almost to condense Mazda's entire history of sports car development into a single model. In line with the company's theme for the Tokyo Motor Show this year, "Accelerate toward our dreams," Mazda will make an appeal for the brand's unique approach to driving pleasure. In addition to the sports car concept, Mazda KOERU will be on display along with new-generation models featuring SKYACTIV Technologies and KODO—Soul of Motion design. A motor sports exhibit will feature racing-spec Roadsters and the Cosmo Sport will complement a heritage display showing Mazda's history of convention-defying engineering.

Lucid Air and Maserati MC20 unveiled | Autoblog Podcast #644

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Associate Editor Byron Hurd. Before they get to the juicy news of the week, they chat about the cars they've been driving, including a Ford Mustang Shelby GT350R, Audi A6 Allroad, Mazda CX-9 and Kia Niro. It's been a busy week in the news department, with GM investing in Nikola, Lucid Motors launching the Air electric sedan, Maserati unveiling the MC20 mid-engined supercar and a farewell to the Lexus GS. Then they talk about having a newfound respect for the Fox Body Mustang and the Mazda CX-9. Autoblog Podcast #644 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 Ford Mustang Shelby GT350R 2020 Audi A6 Allroad 2020 Mazda CX-9 2020 Kia Niro GM buys $2 billion stake in Nikola, will build Badger hydrogen-electric pickup Update: Short-seller accuses Nikola of fraud and Nikola threatens to sue Lucid Air production electric luxury sedan is a dream revealed Lucid Air's modular powertrain opens up serious performance possibilities Lucid Motors teases electric SUV at Air debut Mid-engined, 621-horsepower MC20 inaugurates a new era for Maserati All future Maseratis will borrow styling cues from the MC20  2023 Maserati MC20 Folgore planned with three-motor electric powertrain Lexus GS dead for 2021 Respect to: Fox Body Mustang Mazda CX-9 Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: