It's funny how Mazda works. Revolution, then evolution. And then back again. By December, Australia's favourite car, the Mazda 3, will have had the big one. The Hiroshima engineers are draping their smart Kodo wibbly-wobbly design themes over lighter, sharper, and wieldier SkyActiv chassis and drivetrain components. So we're talking modified versions of the CX-5's all-new 2.0 petrol and 2.2 turbo-diesel engines, six-speed transmissions all-round (including auto for diesels for the first time in a Mazda 3), start-stop availability and electric power steering.