The Mazda Kiyora is Mazda’s latest concept car and will be unveiled at the 2008 Paris Motor Show. The Kiyora concept is a lightweight urban compact car. The Kiyora name means “clean and pure” in Japanese and is meant to represent the “Sustainable Zoom Zoom” harmony between driving pleasure and environmentally friendly features.

The urban compact is equipped with a direct injection 4-cylinder engine and Mazda’s Smart Idle Stop System. Is this a Mazda-ized Ford Ka or something larger?

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According to Mazda, “The RENESIS Hydrogen Rotary Engine incorporates an electronically-controlled hydrogen injector system (the hydrogen is injected in a gaseous state).

The system draws air from the side port during the induction cycle and uses dual hydrogen injectors in each of the engine’s twin rotor housings to directly inject hydrogen into the intake chambers. By virtue of its construction, with separate chambers for induction and combustion, the rotary engine is ideally suited to burn hydrogen without inviting the backfiring that can occur when hydrogen is burned in a traditional piston engine.The separate induction chamber also provides a safer temperature for fitting the dual hydrogen injectors with their rubber seals, which are susceptible to the high temperatures encountered in a conventional reciprocating engine.”

The Mazda RX-8 RE hybrid car also employs a couple of other environmentally friendly features of which one would not normally think. For instance, the RX-8 uses a water-based paint, applied wet three times, which reduces the emission of organic solvents, speeds drying time and reduces CO2 gases.

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