As Mazda strives to lower its CO2 emissions and improve fuel economy, a new breed of Mazda vehicle and engine is about to be unleashed, and it’s something you need to pay attention to. The scene is the Tokyo Motor Show 2017, and the vision involves not one, but two new-gen concept vehicles that will debut next to the very engine that will propel the future vehicles they represent. Little is known about either at this time, but it’s probably safe to assume that Mazda isn’t going to let us down. So far, the brand has released a set of teasers to go along with shots of its new Skyativ-X engine. And, sorry folks, that Skyactiv-X isn’t the rotary engine we’ve all been begging for, but it’s still pretty cool.