The Wankel rotary engine was first used in a car in 1964 and it seemed like a revolutionary concept that many carmakers licensed it to use for their models. However, virtually all found it to have issues which they didn’t want to waste time and money trying to address and gave up. Only Mazda worked hard to commercialize the rotary engine and succeeded in doing so from 1967.

Unfortunately, some of the characteristics of the rotary engine – high emissions and consumption – were unacceptable as the world grew more environment conscious. By 2012, Mazda had no choice but to stop using the rotary engine and it seemed that it was gone forever. From time to time, there would be rumours of its return and Mazda insiders would say ‘we are working on it but still need time…’. The last time the rumour was strong was with the Vision Study Coupe concept.

Today, the rotary engine returns but not in the way enthusiasts would expect it. It is not used as a primary propulsion system but is instead adapted for use more as a power generator in the plug-in hybrid (PHEV) powertrain of the new MX-30 e-Skyactiv R-EV model.