the Nissan Leaf is estimated to get 99 mpg-e
By comparison, the Chevrolet Volt gets 94 mpg-e when driven in all-electric mode. The Volt can travel about
35 to 40 miles on electricity before a gasoline engine kicks on

Consumers in New York,
New Jersey and California have been able to order the Focus electric since November, and that will expand to 15 launch markets in 2012. The car uses a lithium-ion battery pack and can recharge in three hours on a 240-volt outlet.