Americans Driving Fewest Miles Since '03

Americans hit the brakes on driving in July, logging 2.5 percent fewer miles amid high gas prices and a struggling economy. Through the first seven months of the year, Americans have driven 1.715 trillion miles ? the lowest tally since 2003 ... Overall, driving has fallen 1.2 percent this year or 21.5 billion miles. As Americans drive less, they may be more likely to hold onto older vehicles. But the trend may change as gas prices have dropped sharply in recent weeks, and are below $3 a gallon in some retail locations.