Mazda's notes claim the Skyactiv-Z engines will utilize "the lambda one combustion method" that is designed to achieve "high thermal efficiency by realizing super lean burn combus

Mazda continues to invest in internal combustion. The company has revealed that it's currently developing a new gas-powered four-cylinder engine that will introduce the latest Skyactiv technology. Called Skyactiv-Z, it will eventually replace the Skyactiv-X engines sold abroad as well as the Skyactiv-G engines that are sold in North America.

Mazda also shared that it plans to introduce Skyactiv-Z to the market by 2027, and it has already earmarked stringent emissions regulations to make this happen. Specifically, the new internal combustion engine will meet Euro 7 standards and LEV4/Tier 4 in the US, solidifying its itinerary stateside and its use in the popular roadster.

Mazda plans a new in-house hybrid system for the next-generation CX-5, left, in the 2025-27 timeframe, adding to the Toyota-sourced hybrid just launched in the CX-50, right. (MAZD

Mazda recently confirmed that a new, next-generation CX-5 is on the way, and it will be a gas-electric hybrid. In a recent investor relations meeting, the company also shared details about a new line of Skyactiv engines and other new projects involving a next-generation battery-electric vehicle platform as the company begins its transition to electrification and push towards carbon neutrality.