Rated the best compact by J.D. Powers. The overall highest mileage small car is the 2006 Honda Civic Hybrid. An electrical motor supplements this hybrid's 110-horsepower 1.3-liter 4-cylinder gas engine. The result is a government fuel economy rating of 49/51 mpg for this sedan. Honda’s compact car offered in sedan, coupe, and hatchback versions, the Civic was first introduced as a small, inexpensive hatchback in 1972. During its lifetime the Civic has increased in size while continuing to offer excellent fuel economy. The seventh-generation Civic arrived as a 2001 model and the Civic Si returned for 2002. The Civic Hybrid was added as a 2003 model and features gas-electric hybrid technology. The entire Civic line was all-new for 2006. For 2007, the Civic Si added a sedan version for the first time ever.