A look inside the EPA's mileage ratings, we check the tech in the 2013 Audi S7 and lay out the Top 5 reasons for self-driving cars.
Tracking your car's gas mileage can help determine if it is getting decent fuel economy, and can help calculate drive costs. FuelLog is an Android app that can show you your MPG and provides lots of useful statistics.
Ford's new plug-in hybrid drives under electric power for up to 21 miles, and reverts to a standard hybrid when its electric range is used up.
High gas prices show no signs of letting up anytime soon. Learn how to save some time and money with these fuel-related tips for your car.
GM engineers tweaked the 2013 Chevrolet Volt's battery cell chemistry to increase capacity, electric range, and overall fuel economy.
The EPA fuel economy sticker for the gas-electric Volt, about to hit selected markets, is not yet official, but early drivers say your actual mileage will vary greatly.
The one-motor, two-clutch system in the Infiniti M, Nissan says, will get far better fuel economy, at a lower technical cost, than hybrid leader Toyota's system.
General Motors' second-generation mild hybrid technology, which improves mileage by 25 percent, will be used in upcoming Buick Regal model and potentially other cars.
The less you drive, the less likely you are to get into car accidents--at least that's how insurance companies look at it. To better align drivers' automobile insurance rates with risk, State Farm is offering its California customers discounts based on their odometer readings.
General Motors says its electric car will get 230 miles per gallon in the city. But there are still questions about how plug-in vehicles should be rated on fuel efficiency.