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Nissan reveals updated 2015 370Z Nismo among the faithful

Well before quick Honda Si models of the '80s or the performance juggernaut that the Toyota Supra and Mazda RX-7 became in the 90s, the Datsun 240Z was an early stake in the ground for Japanese sports cars. It was affordable, but the original Z-car was also a capable coupe that could show its tail to European and American rivals. Today, Nissan celebrates the car each year with fellow enthusiasts at its ZDAYZ event, and this year in North Carolina, it's surprising fans by launching the 2015 370Z Nismo there with some significant upgrades.
The biggest change is that the 370Z Nismo is available with a seven-speed automatic transmission for the first time. The six-speed manual is still standard, of course. But for those who don't want to use a clutch, Nissan is offering the new automatic with Downshift Rev Matching and a manual mode via paddle shifters. Power is still provided by the same 3.7-liter V6 as last year, producing 350 horsepower and 276 pound-feet of torque with a limited-slip differential at the back for added traction.
This hottest 370Z model also receives a brand-new GT-R-inspired bodykit that features a deeper front fascia, LED running lights and blacked-out headlight bezels. It also sports a new chin spoiler bearing the Nismo emblem and red accents that flow from the front, down the side sills and all the way to the rear bumper. At the back, there is also a smaller ducktail spoiler for a more mature look. The 2015 also wears cool 19-inch forged aluminum wheels by Rays with a new twin-spoke design and charcoal finish. Compared to last year's model, it's a much more mature-looking coupe.

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:

Mercedes and Infiniti confirm joint production in Mexico [w/video]

It's official, folks: After initial reports last week indicated that Mercedes-Benz was preparing to begin assembly at the Nissan plant in Aguascalientes, Mexico, the two parent companies have announced just that. Only instead of using the existing Nissan plant at the site (in operation since 1992), Daimler and the Renault-Nissan Alliance have announced a joint venture to build a new one alongside it.
The latest stage in the growing French-German-Japanese collaboration is part of a new collaboration that will see Infiniti and Mercedes jointly develop and build a line of compact premium vehicles, with the first Infiniti models set to roll off the assembly line in 2017 and the first Benzes to follow a year later. Neither party announced exactly which models that would encompass, but Mercedes already has a robust line of small vehicles (including the A-Class, B-Class, CLA and GLA), and Infiniti has long been toying with the idea of slotting in something smaller below the Q50.
The billion-euro project, split evenly between the two industrial giants, is set to create 5,700 new jobs in Mexico. In addition to the Aguascalientes project, Infiniti and Mercedes are also undertaking joint production of four-cylinder engines (initially for the C-Class and Q50) in Decherd, Tennessee, from which they will be exported around the world. By the time the new factory in Mexico reaches full capacity in 2021, it will have the capability to produce 300,000 vehicles annually. That's on top of the 850,000 vehicles the existing facility is capable of handling.