Chevy Impala Natural-Gas Version Delayed By A Year Over Unspecified Concerns

Back in October 2013, General Motors announced plans to launch a “bi-fuel” version of its new Chevrolet Impala full-size sedan. It billed the planned Impala variant as the only production full-size sedan capable of running on both gasoline and compressed natural gas (CNG). But more than a year after its public debut, the natural-gas Chevrolet… …read more