The Kiyora, Japanese for "clean and pure," uses water as its primary design theme. A part of Mazda's sustainable Zoom-Zoom philosophy, which strives for "harmony between driving pleasure and environmental and safety features," the Kiyora is a lightweight B-segment minicar equipped with an advanced direct-injection four-cylinder engine that shuts off at idle to reduce CO2 emissions and improve fuel economy. The Kiyora concept stresses aerodynamics and weight reduction and uses an all-new platform and smooth lines to reduce drag. When penning the Kiyora, Mazda designers imagined a city car cutting cleanly through an urban landscape. It features a prominent grille, impossibly narrow headlights, sleek seven-spoke wheels, and intricate exterior detailing that gives the car a taut, flowing shape. Looking at the Kiyora is supposed to bring to mind visions of a single drop of water. Though no images of the concept's interior have been released yet, Mazda says it "features an interior design and new functions that support a youthful lifestyle."