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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 Furai concept designer talks about his car's passing

Last week, there was mourning at the Autoblog offices as word trickled in that the Mazda Furai concept - one of the coolest, best-looking showcars to grace an auto show stage since the wild and crazy 1960s -had been killed. It was killed on the track with the folks from Top Gear in attendance. We're sure the gods of driving would have wanted it to die on a circuit, but that doesn't make its fiery passing any easier to deal with.
The Furai is the rare concept car that had a lasting appeal with enthusiasts, partly because it was a real, functioning racecar, complete with a wacky three-rotor Wankel engine and cutting-edge Nagare design. Now that it's gone, though, Road & Track's Mallory McMorrow, who was an intern at Mazda Design when the Furai was being styled in 2007, has published an interview with one of the men who penned the Mazda showcar's striking exterior, Carlos Salaff. It's a great piece on the emotional connection between a designer and his creation, and one you should take the time to read. Click on over to R&T for the full story.

2021 Mazda6 gets small price increase and updates, and that Carbon Edition

Mazda's blowing a soft breeze of change over the 2021 Mazda6. We already knew the Japanese automaker has included the sporty sedan in its batch of Carbon Editions, along with the 2021 Mazda CX-5 and Mazda CX-9. The trio feature an exclusive Polymetal Gray exterior hue with blacked-out trim and a black metallic finish for the wheels. while the interior shouts in red leather with black accents. We now know the Carbon Edition is based on the fourth-highest trim, the Grand Touring Reserve, adding just $275 to the price of that trim in standard guise. Pricing for the entire 2021 range and differences to 2020 after the $945 destination charge are: Mazda6 Sport $25,270 ($225) Mazda6 Touring $27,870 ($225) Mazda6 Grand Touring $30,970 ($225) Mazda6 Grand Touring Reserve $33,470 ($225) Mazda6 Carbon Edition $33,745 Mazda6 Signature $36,695 ($350) Two of the three premium paint choices go up in price as well. Snowflake White Pearl Mica will cost $395 instead of $200, Machine Gray Metallic goes from $300 to $495. Soul Red Crystal Metallic holds steady at $595. At the entry-level, the Sport adds Android Auto and Apple CarPlay to its list of standard equipment, meaning the infotainment feature is now standard across the lineup. Everything holds steady until the Mazda6 Grand Touring, which adds a "Turbo" badge at the back for distinction, and wireless Apple CarPlay inside. Mazda didn't say so, but we're guessing wireless Apple CarPlay will be available on trims above the Grand Touring as well. Under the hood, the 2.5-liter turbocharged Skyactiv-G four-cylinder gains 10 pound-feet of torque when filled with 93 octane, producing the same 250 horsepower but an improved 320 lb-ft. On 87 octane, the engine makes 227 hp and 310 lb-ft.  The 2021 Mazda6 misses out on the new infotainment system shared with the Mazda3, CX-30, and CX-5, and the diesel and all-wheel drive options still haven't decided to come out of their hiding places. The sedan is expected on dealer lots later this month or early next. Related Video: