We like the idea of the average car being rated for 54.5 miles per gallon by 2025, but the EPA says this will add $2,600 to the cost of a new car. This sounds really sucky until one does the math. Assuming an average ownership period of four years and an average of 12,000 miles driven per year at $4.00 per gallon, a driver in one of today's cars that are averaging – for January of 2013, according to TrueCar – 23.4 mpg will pay $8,205.13 in gas. The 2025 driver will pay $3,522.94. That makes for a savings of $4,682.19, which is $2,082.19 once the added cost of purchase is factored in.

That's right, the EPA mandate that is raising car costs will save car buyers money.

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[via Detroit Free Press]