10. Chevrolet Sonic LT - 33 MPG Combined
Starting off the list is the Chevrolet Sonic LT equipped with a 1.4-liter EcoTec turbo engine that provides 138 hp and 148 lb-ft of torque. While the 1.4-liter EcoTec engine isn’t standard, it’s worth the extra money if you’re looking to maximize fuel economy. With that specific powerplant, the Chevrolet Sonic achieves 29 mpg in the city and 40 mpg on the highway, giving it a 33-mpg combined rating when equipped with a six-speed manual transmission. The Chevrolet Sonic LT with the 1.4-liter EcoTec Turbo is priced from $17,905.