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Fresh on the heels of last week's tie-up with Toyota, Mazda announced on Tuesday that it has finally made a breakthrough in gasoline engine technology. Mazda is calling it Skyactive-X; we know it better as homogeneous charge compression ignition, or HCCI. It should mean a 20- to 30-percent boost in efficiency compared to Mazda's current gasoline direct-injection engines, and we may well see it in the next revision to the Mazda 3.
Read more here: https://arstechnica.com/cars/2017/0...ng-awaited-breakthrough-in-engine-technology/
This is the kind of innovation that efficiency mandates around the world have prompted. Currently the Mazda 3 with a GDI engine gets about 40 mpg on the highway. HCCI engines will have the next generation at nearly 50 mpg or more, with even lower emissions, and with even better performance.
Never count out human ingenuity.