2013 Ford Fusion EcoBoost

With more new-car buyers than ever wanting higher gas mileage in their next car, automakers are keen to show just how efficient their latest models can be. Which is probably why Ford took to its oval test track in Dearborn, Michigan, with four NASCAR stars to prove that its 2013 Fusion with 1.6-liter EcoBoost engine could achieve gas mileage figures most mid-size cars could only dream of. In a closed-track event called the Fusion EcoBoost NASCAR Miles Per Gallon Challenge, Ford challenged NASCAR drivers Greg Biffle, Carl Edwards, Trevor Bayne and Matt Kenseth to drive around its 2.5-mile long...