The Chevrolet Impala Bi-Fuel was supposed to go on sale in the summer of 2014 with gasoline and compressed natural gas for power. However, delays surrounding its CNG system mean that they still aren't at dealers.
As we suspected back in May based on spy shots, Chevrolet is adding a bi-fuel version of the tenth-generation Chevy Impala that can run on both regular gasoline and compressed natural gas (CNG). Unveiled today in Washington, D.C. by General Motors CEO Dan Akerson, the new bi-fuel Impala will be offered to both retail and fleet customers, and Chevy points out that it is the only manufacturer-produced, fullsize bi-fuel sedan in North America. Outside suppliers offer add-on CNG kits, but this new I