Diesel power for the upmarket Mazda CX-60

3.3-litre straight-six cylinder unit is the latest development in the brand’s long-established Skyactiv technology direction and is pitched as one of the cleanest diesel engines ever produced. It particularly scores with its levels of NOx emissions, the most serious pollutant of oil-burning engines – the Mazda unit produces NOx at one-third of the compliance level in the yet to be implemented and very stringent Euro 7 emissions regulations.