General Motors reported Chevy Volt sales of 1,760 units in June, doubling the number it sold in June 2011.

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In the first half of 2012, GM sold a total of 8,817 units of the Volt plug-in hybrid, more than triple the 2,745 it sold during the same period in 2011. In fact, during all of 2011, GM sold 7,600 units of the Volt.

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Nissan LEAF sales on the other hand saw a 69 percent drop in June to 535 units. So far in 2012, Nissan has sold 3,418 units of the LEAF – down 19 percent during the same period in 2011.

- By: Omar Rana