1984 50th Anniversary Edition Nissan 300xz Turbo on 2040-cars

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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:

France's Macron says Renault-Nissan partnership is a 'jewel' to be strengthened

TOKYO — French President Emmanuel Macron on Wednesday called for further synergies and alliances to strengthen the Renault-Nissan partnership in a global market. "The Renault-Nissan alliance is a jewel in the industry," Macron told French expatriates in Tokyo. "We created a giant which we must not only preserve but develop synergies and alliances to strengthen it in the face of international competition." His comments appeared to leave open the possibility both of a deeper integration of the 20-year-old Renault-Nissan alliance, which has been shaken by the scandal over its former chief Carlos Ghosn, and tie-ups with other manufacturers. Last month, Renault and Italian-American group Fiat Chrysler Automobiles (FCA) announced they were in merger talks. But the discussions were called off after FCA grew frustrated with the role the French state was playing, especially its need to secure agreement from Nissan over how to move the merger forward. Since the break-off of the FCA talks, Renault executives have been looking to rebuild ties with Nissan, which is keen to reduce the influence the French state has in the alliance via its 15% stake in Renault. Renault owns 43% of the Japanese automaker, which in turn holds a 15%, non-voting stake in its partner. Nissan on Tuesday threw cold water on hopes for a quick fix to strained relations with France's Renault SA , saying inequality between the partners could unravel their two-decade-old automaking alliance. Macron said on Wednesday France would remain vigilant that Carlos Ghosn's presumption of innocence and the former Renault-Nissan leader's rights to defend himself in a Japanese lawcase are respected. "It's not up to the French president to interfere publicly in a judicial case," Macron said. "Japanese justice is independent." "We will be vigilant, just like with all our citizens across the world who have to answer to the law, through consular activity, so that the defendant's rights and presumption of innocence are respected in that case."

Why it's difficult to accurately test the efficiency of a plug-in car

When it comes to electric vehicles and plug-ins in general, the Environmental Protection Agency-certified range is a hugely important number. While actual range anxiety is largely psychological, the magic number does provide a point of comparison of buyers considering one EV over another. The driving distance is also often touted by automakers when marketing their models. Unfortunately, as Green Car Reports finds in a recent deep dive, the way the EPA calculates the figure is a convoluted mess, and discovering the reasons why is definitely worth the read. The issue isn't about bad science but instead comes down to vague wording. The EPA's accepted range test is sourced from an evaluation called J-1634 from the Society of Automotive Engineers, and it seems to provide balanced results for vehicles that automatically reach a single state of charge when plugged in. However for models with multiple charge settings, the situation gets complicated very quickly. Of course, these modes are often created in the software, meaning that a car's certified driving distance can change with just a few taps of the keyboard without the real world results owners might experience actually changing. By showing the test's effects on the certified range for the Tesla Model S, Nissan Leaf and Mercedes-Benz B-Class Electric Drive over the last few years, Green Car Reports makes a compelling argument that it's the evaluation that needs to change. Thankfully, it appears that the solution is a very simple one. Get the details here.