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Mazda3 Skyactiv-Hybrid and CNG Concept shown in Japan

Mazda has received a tremendous amount of public and industry praise in the last few years, following up the successful introduction of its Skyactiv technology (powertrain and otherwise), with strong products like CX-5, Mazda6 and most recently, the Mazda3. At the Tokyo Motor Show, Mazda has taken yet another step forward with Skyactiv and the 3, showing the compact (called "Axela" in Japan) with an all-new compressed natural gas engine in the Skyactiv-CNG Concept.
The end result of the Skyactiv-Hybrid is fuel consumption estimated at something like 74 miles per gallon.
Mazda thinks that CNG-powered vehicles are due for an uptick in demand, and the company believes this new powertrain will add valuable breadth to the Mazda3 range. The CNG Concept is actually a duel-fuel vehicle, capable of running on either natural gas or gasoline. In fact, we're told that the high compression ratio (14:1) inherent in Skyactiv-technology gasoline engines makes conversion to CNG particularly simple.

Honda, Mazda, Mitsubishi, Mercedes also under diesel emissions scrutiny

The controversy over Volkswagen's diesel emissions scandal isn't limited to the US. In Europe, where diesel engines are far more popular, the issue is shining a harsh light on the NEDC emissions test. As already known, the evaluation does a poor job of reflecting real-world production of NOx, and it appears a significant number of automakers are affected. The Guardian in the UK has been reporting on real-world test results from a company called Emissions Analytics. After the latest round of checks, vehicles from Mercedes-Benz, Honda, Mazda and Mitsubishi were found to generate far more NOx than they should. The newspaper also published similar results for Renault, Nissan, Hyundai, Fiat, Volvo, Jeep, Citroen, VW, and Audi. On average, the figures are about four times over the limit of producing the pollutant. Unlike VW and its defeat device, these automakers aren't actually breaking the rules. The vehicles perform up to the NEDC lab test for emissions, but those results simply aren't translated to the street. "The VW issue in the US was purely the trigger which threw light on a slightly different problem in the EU - widespread legal over-emissions," Nick Molden from Emissions Analytics said to The Guardian. A big fight to decide the future of this issue appears to be on the horizon. Automakers claim that they can't meet the next round of tightening emissions regulations and are asking for compromises. Although, spokespeople for Mercedes and Honda told The Guardian that the brands would be in favor of the stricter rules. Meanwhile, some European governments began backtracking their support of diesels well before this scandal came to light. The added scrutiny certain hasn't helped the future of the oil-burner. Related Video:

Mazda engineers urging execs for more RWD models

According to Edmunds, Mazda engineers are pressuring the company to create more rear-wheel-drive models, in an effort to better differentiate itself from its rivals. This push is reportedly coming from middle and senior engineers within the company, and these folks at Mazda believe this rear-drive strategy would allow the automaker to produce more distinctive, fun to drive cars. Mazda discontinued the rear-drive (and rotary-engined) RX-8 a few years ago, leaving the MX-5 Miata as the company's only RWD offering.
As enthusiasts, we're fully on board with Mazda offering more rear-drive cars, but unsurprisingly, the company's top management isn't exactly keen on the idea - and with good reason. First and foremost, the cost associated with redesigning fresh architecture for new models would be very high, and considering the fact that Mazda hasn't exactly been raking in the dough lately, an expensive new venture like this doesn't make a whole lot of sense. What's more, Mazda's latest front-drive models - the Mazda3, Mazda6 and CX-5 - have been very well-received, and are helping the company gain sales momentum.
But that doesn't mean there aren't other options. Edmunds reminds us that Mazda is already partnering with Alfa Romeo on the next-generation Miata, and if this collaboration is successful, perhaps the relationship could bear additional fruit. After all, Alfa Romeo is said to be working on returning to its rear-wheel-drive roots, so Mazda's engineers might be able to make a case for more RWD goodness after all.