2003 Mazda Protege Lx Sedan 4-door 2.0l 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:

Mazda planning more powerful MX-5?

The new Mazda MX-5 will be available with a 1.5-liter four with 129 horsepower or 2.0-liter with 155. And while either engine may seem a tad on the small side for a sports car, they keep perfectly in line with what the Miata is all about. That doesn't mean, however, that more powerful options aren't under consideration. Speaking with Motoring.com.au at the launch of the new MX-5, Mazda's global PR chief Kudo Hidetoshi revealed that two options are under consideration. One would be a larger engine, and the other a turbocharged version of the existing 2.0. The former option would deliver the extra punch while keeping things naturally aspirated and free from turbo lag, but could throw off the weight balance Mazda has worked so hard to preserve. The more likely option, then, would be the turbocharged route that would allow the Zoom-Zoom brand to keep the roadster light and nimble, while still delivering an extra boost. Neither would be without its challenges, but if overcome, the resulting high-performance model could be sold as a Mazdaspeed model in some markets and as an MPS version in others. And, even if such a performance roadster were to get the go-ahead for production in some markets, there's no guarantee that it will be sold in the United States. Here's hoping. Related Video:

Mazda Miata speedster and spyder concepts set for SEMA

Mazda will show speedster and spyder concepts based on the 2016 MX-5 Miata next week at SEMA in Las Vegas. The speedster is at the top of the teaser, and the spyder is the bottom half. The speedster goes with an extreme lightweight design. It has only a small wind deflector in place of the windshield and a blue ether topcoat. The spyder is a vintage roadster rendered into a modern form with a handcrafted leather interior and mercury silver paint job. Both are lighter than the production version and will be sure to get the hearts of Mazda fanatics and roadster enthusiasts alike racing at the possibilities. We doubt either will actually see production, like so many Miata-based concepts of the recent past. But that won't stop us from dreaming all the same. MAZDA TO SHOWCASE LIGHTWEIGHT PERFORMANCE AT SEMA WITH TWO MX-5 MIATA CONCEPTS - MX-5 Spyder and Speedster Concepts Bring Vintage Cues into Modern Designs - IRVINE, Calif., Oct. 29, 2015 -- The Mazda MX-5 Miata has been an exercise in honing the concept of a lightweight sports car for more than 26 years, created solely for driving exhilaration. But for the 2015 SEMA Show at the Las Vegas Convention Center, Mazda designers wanted to see what they could do if that idea was taken to the extreme. What they created were two vastly different takes on the fourth-generation MX-5: The 2016 MX-5 Spyder Concept and 2016 MX-5 Speedster Concept. MX-5 Spyder captures the character of a vintage roadster and translates it into a modern-day design, including bespoke leather interior details that were painstakingly crafted, and featuring a new Mercury Silver concept paint color. MX-5 Speedster is a study in the extremes of lightweight, purpose-built performance, paying homage to minimalist roadsters of the 1950s. The Blue Ether-painted MX-5 Speedster is uncompromised in its approach to wind-in-the-hair driving, going so far as to eschew a traditional windshield for a lighter deflector. Both cars are significantly lighter than the 2,332-lbs. MX-5 roadster that customers can purchase at dealers and come with a host of conceptual and aftermarket pieces and fabrication from partners including Racing Beat, Haartz Corporation, ASC – American Sunroof Corporation, Makin Industries/RAYS Wheels, KW Suspensions, Delta Seat, H&R Springs, Lusch, AC&A Manufacturing, Franks Fab Shop, Long Road Racing and SIM Specialty Interior Manufacturing.