X 2010 Honda Civic CNG

1.8 L, 4 cyl, Auto 5-spd, Natural Gas

MSRP: $25,340

EPA Fuel Economy

Combined: 28 MPG

City: 24 MPG

Highway: 36 MPG

X 2001 Chevrolet Prizm

1.8 L, 4 cyl, Auto 3-spd, Regular Gasoline

EPA Fuel Economy

Combined: 27 MPG

City: 25 MPG

Highway: 30 MPG