Cars in the U.S. are more fuel-efficient than ever. Here’s why.

Washington Postby Brad Plumer
The Washington Post
March 16, 2013

We’ve noted before that cars and trucks in the United States have starting becoming more fuel-efficient in recent years ‚Äî after decades of stagnation ‚Äî in response to high oil prices and strict new vehicle standards. That’s one reason why U.S. oil imports have plummeted.

But a new report from the Environmental Protection Agency offers the most detailed breakdown yet of this trend.

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