(CNNMONEY) If the cars you see on the road these days seem a little run down to you, you might be on to something.
The average age of vehicles on America's roads has reached an all-time high of 11.4 years, according to the market research firm Polk. And that average age is sure to keep climbing, the firm said.
The decline in new vehicle sales during the recession pushed the average vehicle age higher, as people kept their old cars running longer, according to Polk. The number of vehicles over a dozen years old is growing especially rapidly, the firm said.
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