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The biggest news about the 2019 Mazda 3 is its SkyActiv-X petrol engine, which is said to give diesel-like fuel economy thanks to what Mazda calls Spark Controlled Compression Ignition (SCCI).
his clever new tech, combined with a conservative 187 hp and 230nm of torque, will mean the supercharged 2.0-litre engine will be as efficient as a diesel, but without the sooty emissions.