The Gasoline Free Honda Civic GX

The Honda Civic GX is currently the only natural gas car available in the U.S. It has been available to the public since 2005. It looks and drives like a regular Honda Civic, but it runs only on natural gas instead of gasoline. It's known for being the cleanest internal combustion vehicle on the planet.

The Honda Civic GX is a 4-door family sedan, available in one trim, the 5-Spd AT.

It's equipped with a standard 1.8-liter, I4, 113-horsepower, compressed natural gas engine that achieves 24-mpg in the city and 36-mpg on the highway. The MSRP is $24,590.

The Pros:

• The emissions are 90% cleaner.
• The cost of natural gas is much lower than gasoline.
• Natural gas is safer than gasoline in an accident.
• Buyers can qualify for a $4,000 tax credit.
• You can buy a home refueling system.

The Cons:

• There are not as many filling stations for natural gas as there are for gasoline.
• There are not as many repair shops certified to do repairs on a natural gas vehicle.
• The natural gas tank takes up a lot of trunk space.
• There is often a waiting list to buy the car, because supply does not meet demand.