GM Prepping CNG-Powered Chevy Impala?

Compressed natural gas, or CNG, may be the fuel of the future here in America. Vast untapped resources of CNG are only now being exploited, and automakers are responding with a limited offering of CNG vehicles. Spy shots suggest that GM could be prepping a CNG-powered Chevy Impala for either fleet or public sale.

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Next-Generation Chevy Volt To Get Efficient Three-Cylinder Engine

When the Chevy Volt debuted, it’s combination of a gas-powered generator and electric motor drive system won the hearts and minds of many (though not all) car critics. But one weak spot has always been the so-so fuel economy averaging 36 mpg when the generator is running. GM plans to remedy that with a fuel-sipping three-cylinder engine in the next-gen Volt.

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