Next Toyota Prius Aiming For 55 MPG

For more than ten years the Toyota Prius has been the overwhelming champion of fuel-efficient cars, with no competitors coming even close to its 50 mpg combined mileage. But the competition among fuel-efficient cars has grown exponentially in the past few years, and in order to stay on top Toyota needs to deliver more efficiency for less money, with a goal of 55 mpg.

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