On the outside, it looks like any other Civic. And it feels and drives much the same, only somewhat smoother and quieter than the gas-only variety. But this is a Honda like no other, a pioneer in the field of natural-gas-powered vehicles - a technology that could potentially ease our dependence on imported petroleum. And it produces 30% less carbon emissions than gasoline, earning the Civic Natural Gas a Partial Zero-Emission Vehicle (PZEV-3) rating. Although it uses no petrol at all, the EPA rates it the equivalent of 38 mpg highway. 
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