1979 Mazda Rx-7 Gls on 2040-cars

Auto blog

Mazda's next-gen SkyActiv engines will drop spark plugs in favor of high compression

Homogeneous charge compression ignition, or HCCI, is the black art of internal combustion engines that aims to produce diesel-like fuel efficiency for the cost of gasoline. Although some of its competitors have developed and subsequently given up on the tech, Mazda confirmed that the next-generation of SkyActiv engines will employ HCCI technology, improving fuel economy by 30 percent and at the same time reducing exhaust emissions. According to Nikkei, a new SkyActiv family of engines is set to debut under the hood of the next-gen Mazda3 sometime in 2018 before making its way into other vehicles. In simple terms, an engine that uses HCCI burns the air/fuel mix using pressure instead of with spark plugs, just like a diesel. At 14:1, Mazda's gasoline engines already have some of the highest compression ratios out there, but a move to HCCI means cranking up the compression to 18:1. While the tech sounds relatively straightforward, using HCCI means dealing with a number of side issues. It's one of those "on paper" ideas that compounds problems when put into practice. Heat, revs, and fuel must all be carefully managed as gasoline doesn't burn the same way as diesel. Mazda is mum on details, but the automaker seems confident that the issues have been sorted. If the new engines do indeed make it to market with HCCI, Mazda will have out-engineered GM, Daimler, and Hyundai, all of which have tried and failed to develop HCCI engines in a cost-effective package. With the market moving towards electrification, it's interesting to see Mazda still focusing so heavily on traditional internal combustion gasoline engines. It's an indication of where they see the market heading for the next few years. Although the automaker has been hesitant to move forward with hybrid and electric powertrains, Nikkei also reports that Mazda will begin mass production of EVs in 2019. Related Video:

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.

Mazda rotary engine returning in 2019 as EV range extender, exec says

It seems that a range-extended Mazda electric car with a rotary engine is for real, and coming sooner than expected. An automotive news outlet from the Netherlands called AutoRAI spoke with Mazda's European vice president for sales and customer service. He told the outlet that Mazda has an electric car coming In 2019, and it will be available with a rotary engine as a generator. Among the details about this car and its powertrain, he said it would be similar in size to the Mazda3, and it might even be a crossover. It will also be based on Mazda's upcoming modular small car platform. The rotary engine will only generate electricity and will only have one rotor. Not only that, it will be mounted horizontally. This is particularly unusual as every rotary Mazda has had the engine mounted upright. We've reached out to Mazda representatives in the U.S. and Europe. An American representative couldn't comment on what type of range-extender options may be coming in the future. We say this specifically because Mazda has confirmed previously that an EV with an available range extender is coming in 2019. We have not heard back from a European representative at the time of publishing. Despite this, a return of the rotary as a range extender looks probable. Besides the dates fitting with Mazda's electric plans, there are other tidbits from the past that support the idea. Mazda has been experimenting with the idea for years, and even created a functioning Mazda2 EV with a rotary range-extender. The company has also filed patents in the U.S. for the setup as recently as last year, and there have been other recent rumors. Related Video: Featured Gallery Mazda RX-Vision Concept: Tokyo 2015 View 11 Photos Image Credit: Autoblog Auto News Green Rumormill Mazda Technology Emerging Technologies Electric Mazda rotary mazda ev rotary range extender