TOKYO -- Japan will require automakers to improve fleetwide fuel economy, including electric vehicles, by roughly 30% from the fiscal 2020 target by fiscal 2030, as it seeks to account for the environmental impact of Earth-friendly autos while still promoting their use.
Electric cars so far have been calculated as having zero emissions because they do not use gasoline. The new rules will take into account the carbon dioxide emitted when generating power to run electrics, converting it into a measure of fuel efficiency, to encourage power-saving improvements.
