The redesign also makes the car more aerodynamic to improve fuel efficiency. Special flat covers on the underside of all 2014 Corollas help smooth airflow. The Eco model boasts even more aerodynamic enhancements, including a small spoiler on the rear edge of the trunk and special wheels with low-roll-resistance tires. Toyota expects the 2014 Corolla LE Eco to achieve 40 miles per gallon or more on the highway. Official mileage estimates have not been announced.
