X 2011 Honda Civic CNG

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

MSRP: $25,490

EPA Fuel Economy

Combined: 28 MPG

City: 24 MPG

Highway: 36 MPG

X 1987 Chevrolet Monte Carlo

4.3 L, 6 cyl, Auto 3-spd, Regular Gasoline

EPA Fuel Economy

Combined: 19 MPG

City: 17 MPG

Highway: 22 MPG