WASHINGTON - Nissan's new electric car, the Leaf, will get the equivalent of 99 miles per gallon (2.3 L/100 km) in combined city and highway driving in U.S. government testing.

Japan's Nissan says the Environmental Protection Agency's fuel efficiency window sticker will estimate the electric car will get the equivalent of 106 mpg (2.2 L/100 km) in city driving and 92 mpg (2.5 L/100 km) on the highway.

EPA estimates that the Leaf can travel 117 kilometres on a fully charged battery and cost $561 a year in electric costs.

The government tests attempt to find a mileage equivalent for cars running only or partially on electricity.

Nissan has estimated the Leaf can travel 160 kilometres on a full charge based on tests used by California regulators.

Nissan and General Motors are both releasing electric cars within weeks.