GM says Volt to get 230 miles per gallon in city

DETROIT

If the figure is confirmed by the EPA, which does the tests for the mileage posted on new car door stickers, the Volt would be the first car to exceed triple-digit gas mileage, Posawatz said.

The Volt is powered by an electric motor and a battery pack with a 40-mile range. After that, a small internal combustion engine kicks in to generate electricity for a total range of 300 miles. The battery pack can be recharged from a standard home outlet.

Most automakers are working similar plug-in designs, but GM could be the leader with the Volt, which is due in showrooms late in 2010.

AP