Mazda has recently unveiled a prototype Mazda2 subcompact that uses an all-new gasoline engine and powertrain system that claims to have the same fuel economy as a hybrid car. Rather than using turbocharging, the engineers fitted variable valve timing and direct fuel injection. They also added a new transmission designed to offer a four to seven per cent improvement in fuel economy, a more rigid body and a significantly lighter chassis as part of an overall package known as Skyactiv.
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