Nissan Leaf and Chevy Volt sales in the U.S.

A total of 2,104 Nissan Leaf were delivered in the U.S. in May, bringing the year’s total to 7,742. While the Leaf is now the best-selling plug-in vehicle in the U.S., Chevy reported its best month since last August for the first-generation Volt. 1,618 units were sold in May, bringing the 2015 total to 4,397.
greencarreports.com