The system compresses gas from the residential line and pumps it into the vehicle's tank through a special nozzle.
It will be certified as a natural gas appliance, meeting the same safety requirements as natural gas water heaters and clothes dryers, and come with a gas leak warning alarm that automatically shuts down the system in the event of a leak, Chaput said.
The Civic GX sedan uses a 1.7-liter four-cylinder engine with a range of up to 220 miles on an eight-gallon tank of compressed natural gas. Base price is $20,510, and Honda figures it will sell about 5,000 a year.
Honda describes the GX as a "nearly zero-emissions" car, and the California Air Resources Board certifies it as a super-ultra-low-emission vehicle. (It also qualified for the board's special PZEV, or partial zero-emission-vehicle, credit when the state's zero-emission-vehicle mandate was in force, but that has been put aside until a General Motors suit challenging the ZEV mandate is resolved.)