8. Dodge Dart Aero $20,190
The Dodge Dart Aero uses many of the same techniques that Chevrolet did for its Cruze Eco. Active grille shutters and underbody aerodynamic panels are aided by low rolling resistance tires and lighter weight components, to make this the most fuel efficient Dart in the lineup. Using a 1.4L turbocharged motor, the Dart Aero costs $20,190, a total of $3,300 more than the base Dart, which is powered by a 2.0-liter 4-cylinder engine. That price difference allows the manual equipped Dart to hit 41 mpg on the highway, a solid improvement over the 36 mpg highway that the base Dart gets. Learn more about the Dart with our Dodge Dart Review.