Electric vehicles had a mostly tough month in April despite near-record high gas prices.
About 3,500 electric vehicles were sold in April in the U.S., down from about 4,000 sold in March, the best-ever month for electric car sales.
General Motors Co. said it sold 1,462 Chevy Volts in April, up 200 percent from the 493 sold in April 2011, but down from the 2,289 sold in March 2012.
GM said it was the second-best retail sales month since the Volt was launched in late 2010. In California, GM has just an eight-day supply. Nationally, GM has 2,800 Volts in stock.
GM had said it would sell 10,000 plug-in hybrid Chevrolet Volts in 2011; it sold fewer than 7,700. Nissan Motor Co. said sales of its all-electric Leaf fell 35 percent to 370 in April, but has insisted it will hit 20,000 Leaf sales in the U.S. this year.