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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:

Nissan Altima takes first V8 Supercars win

The V8 Supercars championship used to be strictly a contest between Holden and Ford. But just as BMW crashed the Audi and Mercedes party in DTM, so has Nissan (and for that matter, Mercedes) pushed past the door into Australia's popular touring car series. And like BMW, Nissan hasn't waited long before notching its first victory.
Nissan claimed the checkered flag this weekend in the first of three races at Winton, the ninth stop on the calendar. And what a spectacular win it was: not only did Nissan take the checkered flag, they finished one-two. James Moffat drove his Altima to the finish line just ahead of teammate Michael Caruso. It was Caruso who lead the first half of the race after qualifying just behind defending champion (and current points leader) Jamie Whincup, who suffered a gearbox malfunction and retired on only the ninth lap.
Of course that's just one race out of 27 so far and 37 scheduled this season, so that won't be elevating Nissan or any of its drivers to the lead the same way that BMW did upon its return last season to DTM, but it's a good start and a cause to celebrate for Nissan. Mark Winterbottom (Ford) and James Courtney (Holden) won the following two rounds at Winton as Jamie Whincup (Holden) leads Will Davison (Ford) in the standings.

Nissan Sentra gets mean with 240-hp Nismo concept

Nissan's Sentra Nismo Concept made its world debut at the LA Auto Show today as part of the Japanese automaker's intitiative to expand its performance line of factory performance models, and it's packing a turbocharged inline four-cylinder engine with 240 horsepower and 240 pound-feet of torque - that's 110 hp more than the regular Sentra.
Of course, no high-performance version of any car would be complete without the suspension upgrades to handle the power, and Nissan has fitted Nismo-tuned suspension and a limited-slip differential to the little front-wheel-drive sedan. With such an increase in power, Nissan wisely chose to swap out the stock brakes for the Brembo calipers and discs from the 370Z. Larger 225-millimeter-wide tires are wrapped around 19-inch Rays wheels and contained within wider fender flares. The steering and six-speed manual transmission also were tuned by Nismo.
The exterior gets new aerodynamic bits, such as a revised front fascia, a chin spoiler and a new rear spoiler, while the interior gets a nice set of Recaro seats and a leather-and-Alcantara steering wheel. For more information on the Sentra Nismo Concept, check out the press release below, and feel free to head over to the auto show photo gallery to see the car up close.