GM emphasizes its safety testing for the Bi-fuel Impala
Green Car Congress
NOVEMBER 13, 2014
Some aftermarket CNG-conversion kit manufacturers conduct only a barrier test. The Bi-fuel Impala—a 2015 “Green Car of the Year” finalist—is the auto-industry’s only manufacturer-produced full-size sedan in North America that runs on both CNG and gasoline. —Nichole Kraatz, Impala chief engineer.
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