To find the EPA estimated MPG, you should look up the specific trim level and engine of your 2007 Mustang on websites like:
* The EPA's FuelEconomy.gov website: This is the most reliable source.
* Edmunds.com or Kelley Blue Book (KBB.com): These sites often have detailed specifications including fuel economy information.
Without knowing the engine, I can't give you a specific MPG number.