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Researchers find HEV under real-world conditions delivers significantly greater fuel economy benefits than EPA “sticker” values

Green Car Congress

Toyota Prius, Honda Insight) compared to conventional vehicles (CVs) of dissimilar make/model and vehicle size. … Prior studies are not well-suited to forecast the magnitude of current-technology HEVs on transportation energy use because the data were from laboratory studies of one or two early model HEVs (i.e.,