Engines vs motors, Mazda’s SkyActiv-X engine, Niro Plug-In, electric-car sales: Today’s Car News

2020 Mazda 3 prototypeToday, we've got a pair of stories on internal combustion, covering Mazda's innovative and fuel-efficient new SkyActiv-X engine and a dismissive comment on electric cars from a Japanese CEO. Also, a new Twitter poll to take and an update on U.S. plug-in electric car sales. All this and more on Green Car Reports. If you think of the global auto...