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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:

Aussie Mazda MX-5 Miata specs leak suggests power loss

Mazda's 2016 MX-5 Miata reveal didn't include much in the way of specifications, but the car's debut seems to have blown the lid off of the rumormill, with the latest word out of Australia including fresh claims of curb weight and engine output.
Before delving into the findings from Motoring.com, we're going to take a moment to find a few grains of salt. It's not that we don't trust the Oz publication, it's just that we wouldn't be surprised to learn their car's specifications will vary from that of our eventual North American car.
Of course, we don't expect the footprint of the new ND model to itself to differ much - it will still be the most compact Miata ever - overall length is expected to check in at just over 154 inches - that's about 1.4 inches shorter than the original NA Miata and over 4 inches shorter than today's NC generation, yet it'll ride atop a longer wheelbase and be slightly wider while sitting lower to the ground.

Mazda reportedly to be fully electric and hybrid by 2030s

TOKYO - Mazda plans to make all of its vehicles electric-based, including gasoline hybrids, by the early 2030s, Japanese media reported on Friday, as more automakers shift strategies to meet tightening global emission regulations. The Japanese automaker plans to use electric motors in all of its models by that time, Kyodo News reported, without citing sources. A Mazda spokeswoman declined to comment on the report. At the moment, Mazda's lineup does not include any all-battery electric vehicles. It does offer a hybrid version of the Mazda3, but it's only available in Japan. The company has also experimented with a range-extended electric Mazda2, which used a tiny rotary engine to produce electricity. The move is consistent with the company's Sustainable Zoom-Zoom 2030 plan, which lays out the launch of various green powertrains. Among them are electrified models coming out in 2019. That same year will include the launch of the company's new SkyActiv-X engine, a compression ignition gasoline engine, which promises fuel efficiency improvement of 20- to 30 percent over comparable spark-ignition gas engines. This engine could hypothetically be combined with hybrid technology for even greater gains in efficiency, or even performance if the company so chooses. Mazda's recent partnership with Toyota also means Mazda could be able to quickly develop hybrids and electrics using Toyota's existing technology. This news that Mazda will begin primarily focusing on electric powertrains does seem contrary to Mazda CEO Masamichi Kogai's statement that its gasoline, diesel and electric vehicle technologies would "co-exist" in the future. Mazda on Thursday also launched a new CX-8 three-row crossover for the Japanese market, which is currently only available with a diesel engine. The company also plans to finally introduce a diesel engine to the United States in the CX-5 crossover. Assuming that Mazda's move to fully electrified vehicles is true, it will join a couple of other automakers planning to do the same. Volvo Car Group in July said that all of its new models from 2019 would feature some amount of electrification, and Jaguar-Land Rover will follow suit starting in 2020. Reporting by Naomi Tajitsu. Editing by Sherry Jacob-Phillips. Additional words from Joel Stocksdale.Related Video: Image Credit: Toru Hanai / Reuters Green Mazda Electric Future Vehicles Hybrid mazda hybrid mazda electric car