More On Hybrid Cars

President Bush looked under the hood of an all-electric sport utility truck parked at the White House to stress that his goal of reducing gasoline use by 20 percent over the next decade is realistic. Find out more about hybrid cars, and whether your car is fuel efficient.

What Are Hybrid Cars?

According to fueleconomy.com, hybrid-electric vehicles combine the benefits of gasoline engines and electric motors and can be configured to obtain different objectives, such as improved fuel economy, increased power, or additional auxiliary power for electronic devices and power tools.

What's The Difference Between Hybrids And Electric Cars?

The major difference between Hybrid cars and Electric cars is that hybrid cars can recharge its electric batteries by using the combustion engine to generate energy while all-electric cars use batteries charged by an external source. Though most hybrids still use gasoline as their primary fuel source, new technologies include the use of ethanol and hydrogen fuel.

To Learn More About Hybrids:

• You can compare the fuel economy of cars at FuelEconomy.gov..

• HowStuffWorks has information about hybrid cars.

• Hybridcards.com has additional information.

• Find out what you need to know before you hit the road with an interactive from CBSNews.com.