For thousands of years, people have been trying to figure out just how far they've traveled.
Read This Article
The Ford Fusion is America's most efficient sedan, says Ford, unsurprisingly.
Cars have been getting more fuel-efficient for some time.
Not long ago, the National Highway Traffic Safety Administration had proudly touted the fact that on-road fatalities last year were at their lowest point since 1949, despite there being more cars on U.S.