2021 Mazda Cx-5 Grand Touring on 2040-cars

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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:

Mazda, Mitsubishi, and Subaru expand global Takata recalls by 715k [UPDATE]

UPDATE: Subaru of America spokesperson Michael McHale tells Autoblog that the company is recalling 78,000 Imprezas from the 2004 and 2005 model years in the US. This is a national expansion of the company's previous regional recall for the Impreza. The Takata airbag inflator recall just keeps growing. The latest expansion encompasses 715,000 vehicles from Mazda, Mitsubishi, and Subaru. Many of the affected models are in Japan. The largest expansion from these three automakers comes from Mitsubishi. According to Reuters, the company is adding 100,000 vehicles in Japan and 412,000 outside of the country without identifying any specific regions. Mazda is issuing safety campaigns for 112,000 vehicles in Japan, and some of these include models that the company produces there for Mitsubishi and Nissan, according to Reuters. In statement to Autoblog (embedded below), Mazda said that it is still evaluating the situation in terms of a possible effect on the US. Finally, Subaru is calling in 91,000 Imprezas in Japan. At this time, it isn't clear whether Mitsubishi's or Subaru's expansions affect the United States, but Autoblog has reached out to them for more information. According to research by the National Highway Traffic Safety Administration, exposure to moisture can cause the propellant in these inflators to ignite too quickly and cause these dangerous ruptures. Takata has also been investigating the problem. Related Video: Mazda statement "We are aware of the NHTSA/Takata announcement, and are evaluating the effects of it on Mazda. As soon as we have had a chance to fully evaluate the situation – number of vehicles affected, age of those vehicles, where they're located, etc. – we will be able to share those details."

2014 Mazda3

Almost by definition, affordable compact cars aren't supposed to be fun. Sure, hot hatches get our blood pumping, but not long ago, the terms "compact car" and "economy car" could safely be used interchangeably. A key exception for the last decade has been the Mazda3, a car that has consistently delivered more dynamic thrills and tactile feedback than its contemporaries. Competitors have picked up their game significantly in recent years, however, leaving the Mazda3 wanting in several areas, including overall refinement, in-car technology and cabin appointments, so Mazda went back to the drawing board to create this all-new third-gen model for 2014.
Including this redesigned 2014 model, Mazda's recent crop of new products have targeted North America's hottest non-truck segments - compact car, midsize sedan and compact crossover/SUV. Yet it might be fair to call this launch the most important of them all, as the 3 remains the Japanese marque's best-selling vehicle. While America's pool of compact hatchbacks isn't exactly deep, the 2014 Mazda3 still has a challenging road ahead of it competing against two-box compacts that include the popular Ford Focus and recent additions like the all-new Kia Forte and the still-new Hyundai Elantra GT.