Natural gas vehicles are expected to grow more popular over the next few years, with worldwide numbers reaching 35 million by 2020.
In the US, the numbers will be smaller, but that hasnít stopped the Big Three from rolling out new vehicles and engines with the ability to burn natural gas. Fordís 2014 Transit Connect, E-Series vans, and F-Series pickups will all offer CNG packages. Similarly, GMís Chevy Silverado and Chryslerís Ram 2500 will feature bi-fuel capability. On the passenger car side, Honda continues to market the Civic Natural Gas Vehicle.
Weíve collected photos of CNG and bi-fuel vehicles -- just a few among the many that now exist around the globe. From compact cars to powerful pickups, we offer some of best of recent years.
Click on the image below to start the slideshow.
The 2012 Honda Civic Natural Gas car (formerly known as the Civic GX) has been offered to fleet customers nationwide since 1998. It uses the same 1.8-liter, four-cylinder engine as the Civic Sedan and Coupe models. Running exclusively on CNG, the engine uses a compression ratio of 12.7:1, compared to 10.6:1 in the Civic Sedan engine.