2008 Mazda Cx-9 Sport Awd • Warranty! on 2040-cars

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Mazda6 diesel is coming, too, Mazda promises (again)

As we noted our piece earlier today about the CX-5 diesel, we've been waiting for Mazda to bring its Skyactiv-D engines to market for years. Tripped up by an emissions certification nightmare that caused delays and resulted in lackluster power and fuel economy numbers, they're late to the party. In the CX-5 diesel, it's also a questionable proposition at almost $4,000 more than the much more powerful CX-5 Turbo. But today, Mazda's U.S. president confirmed to Autoblog that the diesel engine would make its way into the 6. Like the CX-5, it'll only be offered with all-wheel drive and only on the top Signature trim level. Unlike the CX-5 diesel, which goes on sale in July, we don't know when the Skyactiv-D-powered 6 will go on sale. But it seems like later this year is a good bet. How much longer can Mazda wait, really, once the CX-5 diesel is on sale? The diesel Mazda6 will use the same 2.2-liter engine as the CX-5. It'll probably offer the same power figures – 168 horsepower at 4,000 rpm and 290 pound-feet of torque from a low 2,000 rpm, with a 5,500-rpm redline. The fuel economy bonus for choosing a diesel over the turbocharged gas engine should roughly parallel the difference in the CX-5: about 5 mpg in the city and 3 mph on the highway. That said, we don't know the 6's EPA fuel economy numbers yet. We expect the price premium to roughly parallel the CX-5 as well, so the diesel will likely be several thousand dollars more than the gas turbo engine in the same Signature trim. These are educated guesses, of course, and when we have firmer numbers or solid estimates from Mazda we'll let you know.

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.

Masamichi Kogai new Mazda president and CEO

There's some executive rearranging going on in the top suite at Mazda Motor Corporation in Japan, with current CEO Takashi Yamanouchi telling reporters there "I'd like to hand over the work to younger people" now that the company has returned to profitability. Yamanouchi became CEO on November 19, 2008 of an independent Mazda that had to fight for its future in the immediate aftermath of the global financial crisis. What followed was four years of losses before finally getting back to black last year.
Masamichi Kogai (pictured) will be appointed the new president and CEO on June 25, pending approval at the company's annual general shareholders' meeting. Kogai assisted Seita Kanai with the production-efficiency initiative that Mazda called Mono Tsukuri Innovation, which worked to give export-dependent Mazda the best chance at profitability in spite of a rising yen. Kogai, lately in charge of production and purchasing, has been with the company since 1977 and worked in areas from R&D to logistics.
Kanai, who headed the Mono Tsukuri effort and was among the leadership on Skyactiv, will be promoted from executive vice president to vice chairman. Akira Marumoto will become executive VP of Mazda and assistant to new president Kogai. Yamanouchi will remain Chairman of the Board. There's a short press release below to make it official.