fuel economy standards

New Mileage Standards Would Double Fuel Efficiency

To meet the standard, automakers will need to introduce new technology to improve gasoline-powered engines. And they'll need to sell more alternative fuel vehicles. Critics say the rules will add thousands to the price of new cars and make them unaffordable for many.

Fuel Efficiency Is Top Priority for Car Buyers Worldwide

Fuel efficiency remains the top concern among new car buyers around the world, which is likely to boost demand for hybrid and electric vehicles, according to a report from KPMG. But the survey of senior auto-industry executives worldwide also showed that many have serious concerns about such vehicles' affordability.

Bumper-to-Bumper Green Cars at Detroit Auto Show

What are car makers tooting their horns about? All the earth-friendlier engines at the Detroit auto show. Hyundai's plug-in Blue Will concept car and Nissan's all-electric Leaf are just a couple of the new models. Companies are keen to show they are serious about raising gas mileage and reducing emissions.