Sales of plug-in electric cars fell last month, with especially low sales of the Nissan Leaf, following their strong showing in March.
Last month, just 370 Nissan Leaf battery-electric cars were sold, down from 579 in March, and bringing this year's Leaf sales to only 2,103 in the first four months. Last month's Leaf sales were the lowest monthly number in more than a year.
Nissan has sold 11,796 Leafs in total since the car went on sale in December 2010. Nissan has said it will sell 20,000 Leafs in the U.S. this year, but that will require it to sell 2,500 each month from now through December.