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Related Forbes Story: Wayne Gerdes' CleanMPG Site: The current Prius may be EPA-rated for a “lowly” 57 mpg, but it just completed a cross-country drive, from Los Angeles’ City Hall to New York’s City Hall, while averaging 93.1 MPG. That’s a 3,200-mile trip, so unlike a lot of fuel efficiency tests that take place over a few dozen or a few hundred miles, this one took place between two of America’s biggest cites, one on each cost. And yes, that’s a new fuel-efficiency world record, certified by Guinness.
