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Mazda CX-3 to be diesel-only in Japanese home market

Diesel power. It's not just for Europeans anymore. In fact, when Mazda introduces its new CX-3 compact crossover to its home market of Japan, the model will be exclusively diesel-powered, Reuters says, citing remarks made by Mazda CEO Masamichi Kogai. Consistent with its recent push for better fuel economy, Mazda is embracing diesel power as a way to boost fuel-economy for cars that may be larger than the compact variety. Mazda, which plans to make about 150,000 gas- and diesel-powered CX-3s for global consumption per year, is pricing the diesel CX-3 at about $20,000 in Japan. Diesel sales accounted for less than three percent of new-vehicle sales in Japan last year, so there's a risk to Mazda's strategy. But the automaker, which is the fifth-largest in Japan, says performance and noise (and smoke) issues largely associated with diesel powertrains in the past have largely been eliminated. In all, Mazda expects worldwide sales for the year ending March 31 to rise almost five percent from a year earlier to about 1.4 million units. Mazda showed off an early version of the CX-3 at the Los Angeles Auto Show last November, though North American versions of the model will indeed be gas-powered. Related Video: Featured Gallery 2016 Mazda CX-3: LA 2014 View 17 Photos News Source: Reuters Green Mazda Diesel Vehicles mazda cx-3

Mazda patents show rotary engine for range-extended EV

Two years ago, Mazda introduced a fascinating range-extended electric car called the Mazda2 RE Range-Extender. It took an electric Mazda2, and dropped in an itty-bitty 330cc rotary engine. It wasn't the rotary-powered sports car we had hoped for, but it seemed like a unique way to keep the quirky engine alive and kicking. But not long after the car's reveal, it seemed to disappear. Now the basic idea has resurfaced with a few modern updates in a couple of US patents. The first patent is pretty straightforward and describes a range-extended EV similar to the BMW i3. At the front is an electric motor driving the front wheels. At the back is an internal combustion engine that powers an electric generator. In the middle is a lithium-ion battery for storing and delivering electricity. It's the same set-up as that Mazda2. The second patent is for an engine start-and-stop system, but specifically for rotary engines. The system is designed to shut off a rotary engine when not needed, much as modern piston engines do. It also stops the rotor in a position that closes the intake port to ensure no fuel or exhaust emissions slip out through the intake tract. This is necessary since there are no valves in a rotary, and air and exhaust come through ports that are "opened" and "closed" by the rotor itself. The patent also describes the possibility of firing a spark plug after the fuel has been cut to eliminate any leftover fuel emissions. This system would theoretically improve a rotary engine's fuel economy and emissions significantly, which would be a boon as those are two of the rotary's major weaknesses. The rotary-engine patent also includes the same range-extended powertrain drawing as the first patent. It's there as a description of a possible application. And in such an application, where the rotary wouldn't have to run all the time, the system could take advantage of the rotary's inherent strengths. Weight can be kept low thanks to the engine's small dimensions, which should help in keeping the car sprightly and efficient. Rotaries are renowned for smoothness, too, so it shouldn't need too much refining and sound deadening, the latter of which adds more weight. The small size would also help with packaging, leaving more space for people, cargo, or possibly batteries. And since it has been patented, the company may be looking to bring the system to market.

Fiat reconsidering Mazda-based Alfa Romeo roadster? [w/poll]

Alfa giveth and Alfa taketh away. With apologies to Job (he has gone through a lot, after all), that's how things are looking at the Italian automaker - whether it's the promise of new products or its impending return to the North American market. But it's especially true when it comes to new roadsters.
While Alfa Romeo is expected to unveil the 4C Spider at the Geneva Motor Show this week, reports are now suggesting that its other roadster project is being called into question. That project is a joint venture between Fiat and Mazda, which was set to produce a version of its next MX-5 Miata as an Alfa Romeo, and was even changing the design to accommodate Alfa's requirements.
Now it appears, however, that the whole project in doubt. The problem seems to stem from Sergio Marchionne's pronouncements that, as long as he's in charge, there won't be an Alfa Romeo built outside of Italy.