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GM to double models with 40 mpg highway or better by 2017; ongoing manufacturing efficiency improvements

Green Car Congress

On the 40 mpg+ highway side, in addition to the Volt and Spark EV (with the Cadillac ELR coming), GM also currently has the Sonic and the Cruze Eco and Cruze Diesel. Many of the most recent energy-savings initiatives have been within GM International Operations (GMIO) in China, India, Kenya, Russia, South Africa, South Korea and Thailand.

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