How much more would you pay for a car that gets 60 miles per gallon? A new poll finds that 74% of likely voters favor such a fuel-efficiency standard and 66% back the idea even if it adds $3,000 to the price of a new car.

"If you build it, they will come. That famous line from the film, Field of Dreams, captures today's mood of American car buyers," says Roland Hwang of the Natural Resources Defense Council, an environmental group that commissioned the poll along with Environment America, the Sierra Club and the Union of Concerned Scientists. The groups favor a 60 mpg standard by the year 2025.

The Department of Transportation and the Environmental Protection Agency will soon begin the process of setting new fuel-efficiency standards for model years 2017 to 2025.

The poll of 1,007 Americans finds 84% of drivers would support a 60 mpg standard if they could recoup a car's extra cost in four years through savings at the pump. It was conducted by the polling firm The Mellman Group via telephone between Sept. 8-13 and has a margin of error of plus or minus 3.1%.