The White House has reportedly suggested a 56-miles-per-gallon standard.
Transportation experts say Cleveland and New York are the safest cities for pedestrians; Orlando, Tampa and Jacksonville the most dangerous.
How to find just the right sound for electric cars, which are currently so quiet they pose a danger to pedestrians, cyclists and the blind.
A protest to end the ban on women drivers in Saudi Arabia is about more than driving laws. It's also about women's rights in the Arab world.
The Mississippi River continues to rise, and the Coast Guard and Army Corps of Engineers are working to contain the damage. But the costs are still high.
Singer songwriter Susan Vega, of "Tom's Diner" fame, talks about her new, one-woman show Carson McCullers Talks About Love.
Toyota has fallen to the third biggest automaker in the world, as profits tumbled after the earthquake.
The Obama Administration is attempting to catch up to European and Asian high-speed rail projects.
Car sales in Argentina are going through the sun roof. Many people invest to avoid inflation.
Chinese exports are finding new and lucrative markets around the world, and Chinese car companies have started getting in on the action.