GM to double models with 40 mpg highway or better by 2017; ongoing manufacturing efficiency improvements
Green Car Congress
JULY 12, 2013
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. Earlier post.). The company received more clean-energy patents during 2011 and 2012 than any other organization, according to the Clean Energy Patent Growth Index of US patents.
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