1991 Rx7 Convertible 5 Spd. - Red / Blk 35,000 Miles - Mint Condition on 2040-cars

Auto blog

Mazda engineer wants new rotary to be turbocharged

Hope springs eternal for Mazda to revive the high-revving Wankel engine for a new sports car, and the company keeps feeding that thirst with hints that it could happen. To make the possibility even more tantalizing, Mazda drivetrain and powertrain assistant manager Tetsushi Marutani tells Motoring that he wants the updated mill to pack a turbocharger. "Personally, I think that a rotary with some turbo or compressor would be good," Marutani said to Motoring. "Because a rotary, in my opinion, they require more [torque at] low speed, low down torque. So if we have some small compressor or turbo it would help." Mazda hasn't sold a rotary-powered model since the RX-8 and hasn't had a turbocharged one since the third-generation RX-7. However, the recent RX-Vision concept (above) at least hinted at a possible Wankel revival, and Mazda officials confirmed that its engineers continued to develop the engine since the RX-8's demise. The RX-Vision used a next-gen rotary called the Skyactiv-R, but Mazda didn't officially confirm any details about it. Rumors suggested the engine had a two-rotor layout with a total displacement of 1.6 liters. A two-stage electric turbo and hybrid powertrain would allegedly boost the total output of around 450 horsepower. The electric assistance could also counter the Wankel's lack of torque at low revs and poor fuel economy. Those rumored specs sound fantastic, but we still take the rotary's return with a grain of salt. Mazda CEO Masamichi Kogai is adamant that it's not worth the company's limited resources to develop a niche sports coupe instead of better selling vehicles. Related Video:

Mazda still really wants to bring diesels to America

Mazda's Skyactiv program has delivered much of what it promised for the brand's latest crop of products, namely great fuel economy and excellent driving dynamics. However, the Skyactiv diesel engine has yet to reach our shores. It's been promised ever since the new Mazda6 showed up here for the 2014 model year. According to a new report from Automotive News, Mazda's CEO Masamichi Kogai said that the Mazda Skyactiv D diesel powertrain is still set to make an American appearance. He told Automotive News that there is an internal timeline to get it to the States, and while he didn't reveal the timeline, he said he wants it to come here before he steps down as CEO. The powertrain is offered elsewhere, so it fits in the company's current vehicles, but the US has specific regulatory hurdles, and the engine's extra cost has to make sense from a sales and volume perspective. We doubt VW's diesel scandal helped the engine's sales pitch, either. Automotive News also reports that the next generation of Skyactiv designs and engines are also on their way and will advance and improve on the current generation's strengths. Engineers revealed to Automotive News that they expect a 30 percent improvement in efficiency and are developing an engine with the sky-high compression ratio of 18:1. This impressive ratio could be a further indication of Mazda's pursuit of homogenous charge compression ignition (HCCI) engines. Mazda has had plenty of success with its strategy of making very efficient internal-combustion engines, but there are some concerns that the company can only improve so much. The main worry comes from the company's lack of investment in hybrid and electric powertrains. Even Mazda's North American CEO Masahiro Moro expressed concern about meeting a 54.5 mpg mandate for 2025. That mandate will no longer take effect, but increasing fuel economy requirements will always be an issue. Related Video:

2015 Mazda3 shows its shape

Mazda's new Kodo design language is set to quickly spread across the automaker's entire lineup, judging by these spy shots of the next-generation Mazda3 that show some very familiar styling cues. No matter, we're impressed with what Mazda has done on the CX-5 crossover and Mazda6 sedan in terms of design, and we're happy to see the C-segment hatchback ditching the smile-for-a-mile Nagare design.
It's unclear what sort of architecture is found below the new Mazda3 - our spy shooters suggest that the car could simply be using a heavily massaged version of the Ford C1 platform found under the current car. Our best guess is that it's actually a reworked version of the platform used in the CX-5 crossover, however, chocked full of weight-saving Skyactiv technologies. After all, the CX-5 plays in the compact CUV segment, and those vehicles are commonly based on C-segment platforms. And besides, there's probably some economic savings at work with the new chassis - both in terms of fuel efficiency and economies of scale. Still, no one is totally certain what lies under all that black-and-white paper at the moment.
The new Mazda3 is targeted to arrive for the 2015 model year, meaning we could see a final production car debut as early as this year. We expect the hatch you see here to debut along with a traditional four-door sedan, and unless we hear otherwise, we don't doubt that a Mazdaspeed version will be far behind.