This Mazda 3 prototype’s clever Skyactiv-X engine mixes petrol and diesel tech to improve emissions and economy. It’s only an early taster, but things look promising

• Priced from TBC
• Release date 2019

Although this appears to be an ordinary Mazda 3 with a shonky matt black wrap, what you’re actually looking at is potentially the next big thing in internal combustion technology. Underneath the familiar face is a brand new platform and a clever new engine that applies diesel technology to a petrol powerplant.
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https://www.whatcar.com/news/2018-mazda-3-skyactiv-x-prototype-review/n16654