9. Hyundai Sonata Hybrid
The 2017 Hyundai Sonata Hybrid is a sedan that has been tested for an overall score of 39 mpg with a 31 mpg rating for city driving and 46 on the highway. It’s a major contender in the top 20 list with a comfortable ride, quiet cabin and plenty of rear seat room. It’s average on responsiveness, but the tire grip could be a lot better. It’s available in a hybrid or plug in version.