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Chevy Volt 230 mpg

General Motors Corp. said Tuesday its Chevrolet Volt rechargeable electric car should get 230 miles per gallon (98 kilometers per liter) of gasoline in city driving, more than four times the current champion, the Toyota Prius.

The Volt is powered by an electric motor and a battery pack with a 40-mile (65-kilometer) range. After that, a small internal combustion engine kicks in to generate electricity for a total range of 300 miles (480 kilometers). The battery pack can be recharged from a standard home outlet.

GM came up with the 230-mile (370-kilometer) figure in early tests using draft guidelines from the U.S. Environmental Protection Agency for calculating the mileage of extended range electric vehicles.

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.

GM has produced about 30 Volts so far and is making 10 a week, CEO Fritz Henderson said during a presentation of the vehicle at the company's technical center in the Detroit suburb of Warren.

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.

Toyota's Prius, the most efficient car now sold in the U.S., gets 48 miles per gallon (20 kilometers per liter) of gas. It is a gas-electric hybrid that runs on a small internal combustion engine assisted by a battery-powered electric motor to save gasoline.

The first-generation Volt is expected to cost near $40,000, making it cost-prohibitive to many people even if gasoline returns to $4 per gallon. The price is expected to drop with future generations of the Volt, but GM has said government tax credits and the savings on fuel could make it cost-effective, especially at 230 miles per gallon (98 kilometers per liter).

The EPA guidelines, developed with input from automakers, figure that cars like the Volt will travel more on straight electricity in the city than on the highway. If a person drives the Volt less than 40 miles (65 kilometers), in theory they could go without using gasoline.

The mileage figure could vary as the guidelines are refined and the Volt gets further along in the manufacturing process. GM is nearly halfway through building about 80 Volts that will look and behave like the production model, and testing is running on schedule. Two critical areas, battery life and the electronic switching between battery and engine power, are still being refined, but the car is on schedule to reach showrooms late in 2010.

GM also is finishing work on the power cord, which will be durable enough that it can survive being run over by the car. The Volt will have software on board so it can be programmed to begin and end charging during off-peak electrical use hours.

Chrysler LLC, Ford Motor Co. and Daimler AG are all developing plug-ins and electric cars, and Toyota Motor Corp. is working on a plug-in version of its gas-electric hybrid system. Nissan Motor Co. announced last month that it would begin selling an electric vehicle in Japan and the U.S. next year.

Source: AOL Autos

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