Japanese ratings call Prius world's most efficient car, 89.4 mpg
sharon2323
Published
04/04/2009
We already knew the 2010 Toyota Prius would put up some impressive fuel economy numbers but the official Japanese numbers are just insane. On the standard 10-15 test cycle, the new Prius is rated at 89.4 mpg U.S. with CO2 emissions of just 61 g/km! While the new Prius is certainly efficient, these numbers certainly seem highly unrealistic.
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