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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:

The spirit of these 7 weird Mazdas lives on in today's cars

HIROSHIMA, Japan — When visiting the Mazda Museum in Hiroshima, housed amidst the company's main manufacturing site on the shore of the Enko River, you can follow Jujiro Matsuda's early 20th century entrepreneurial path from artificial cork manufacturer to machine and machine toolmaker, to motor vehicle producer. But probe a bit deeper into the exhibits, and you can uncover more than just a chronicle of corporate achievements: delightfully weird outliers, paragons of oddball design, engineering and marketing solutions It's looking at these delightful misfits that really illustrates Mazda's tale. You can also see precisely how many of these vintage conveyances led directly (or indirectly, or obtusely) to Mazda's most iconic American-market cars and trucks. Our seven favorite precursors, and their lovable successors, are listed below. 1931 Type TCS/Mazda B-Series Mazda's first vehicle was this little three-wheeler, powered by an air-cooled, one-cylinder motor. Because the company lacked a distribution network at the time, the trucklet was marketed by Mitsubishi; hence the three-diamond pattern on its side. All of this is very reminiscent of the company's eventual foray into the U.S. market, where its sales were spearheaded by compact pickups. The B-Series, which was one of the first Mazda vehicles available in the U.S., arrived in 1972, and stuck around through the first decade of the 21st century. Like its partnership with Mitsubishi, Mazda teamed up with stakeholder Ford to market this little truck as Ford's first small pickup, the Courier, the precursor to the Ranger. There was even a rotary-powered B-Series for a few years, but we're getting ahead of ourselves. 1968 Bongo Van/Mazda5 The Bongo allegedly was the first one-box van design in Japan, and apparently it was so popular that the name Bongo became, for a period of time, the generic metonym for the category—the way that Kleenex is a stand-in for all facial tissue. With a tiny rear-mounted engine and a planar expanse of metal to push around, it was not particularly fast, but it was both spacious and innovative. The same could be said of the brand's mini-minivan, the Mazda5, which was available for a couple of generations in the States in the Aughties. Sadly, the name 5 never caught on as a synonym for fun-to-drive family hauler, at least not yet, and the category itself (like nearly every other car category) was crushed in America by the rise of the crossover.

Chicago Auto Show page claims 2016 Mazda MX-5 Miata to produce 155 hp [UPDATE]

UPDATE: Mazda wasn't willing to confirm or deny the figures cited by the Chicago Auto Show, although we're betting the 155-horsepower figure is a bit on the low side. As for the CAS page, a Mazda spokesman told Autoblog that they "aren't sure where they got that number." The horsepower estimate has since been pulled down. Well, someone may have made a boo-boo. The Chicago Auto Show is currently hosting a page that claims the Mazda MX-5 will produce 155 horsepower, courtesy of a 2.0-liter, Skyactiv four-cylinder. If this is correct, it'd be the first time the MX-5's US power output had been revealed. The 155 hp figure would account for a 12-hp drop from that of the outgoing MX-5, though, a corresponding weight loss should still improve the power-to-weight ratio for the 2016 model. Now, the CAS page could simply be following previous reports, including one from Autoblog. As recently as October, it was being reported that the MX-5 would be powered by a 2.0-liter, Skyactiv four-cylinder, a version of which is producing 155 horsepower and 150 pound-feet of torque in the Mazda3. Naturally, we've reached out to Mazda for comment – or perhaps even confirmation – on the info from CAS, although we aren't expecting a reply until at least later this morning (darn time zones). Of course, as soon as we hear anything, we'll update this story. Related Video: