The focus has shifted to fuel economy, and the new 2.0L boxer engine returns impressive figures, including 27 mpg city and 36 mpg highway when equipped with Subaru's all-new continuously variable transmission (CVT). Power junkies can get their fix too, as the WRX and WRX STi models offer impressive performance in a small, affordable package bas. Subaru estimates that Imprezas with the CVT will be the most fuel-efficient all-wheel drive cars available