2010 Honda Civic GX The 2010 Honda Civic GX is largely unchanged. It runs on compressed natural gas (CNG) rather than gasoline. It’s sold to retail customers in California, New York, and Utah, but is available to fleet buyers in 32 states. The GX is similar to the Civic LX in terms of features, but the GX comes only as a 4-door sedan with a 113-horsepower 1.8-liter 4-cylinder engine (the …Read the Rest