To find the MPG for a *specific* Ford Focus, you should:
* Check the vehicle's sticker: The original window sticker (Monroney label) will show the EPA estimated MPG.
* Look up the EPA fuel economy estimates online: Websites like fueleconomy.gov (in the US) allow you to search for fuel economy data by year, make, and model.
* Consult the owner's manual: The owner's manual will list the expected fuel economy.
Without knowing the specific Ford Focus you're interested in, I cannot provide a precise MPG figure.