A modified 1.8-liter, four-cylinder engine found in the Civic Sedan and Coupe models powers the new vehicle. Compared to the previous model, city fuel economy is up by 12.5 percent and highway fuel economy is improved by 5.5 percent. Additionally, the 2012 Honda Civic Natural Gas achieves a 10.7 percent improvement in combined fuel economy and range.
Featuring new styling and enhanced performance, the redesigned version can now be equipped with the Honda Satellite-Linked Navigation System featuring an exclusive database of publically accessible CNG stations across the United States. Moreover, it currently qualifies for a state-issued decal allowing single-occupant access to High-Occupancy Vehicle (HOV) “carpool” lanes in California and several other states, as its engine produces almost zero smog-forming emissions.