USA - Efficient Drivetrains Inc (EDI) of Milpitas, California, USA has combined its plug-in PowerDrive 4000 hybrid drive technology with a Compressed Natural Gas (CNG) engine as a range extender in a Class 4 General Motors Low Cab Forward truck, which has been designed specifically help agriculture fleets switch from petroleum-based liquid fuels to domestically available, cleaner burning natural gas and electricity.
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