To be fair, Fords smaller SUVs are essentially sedans with an extended roof and trunk. A Ford Escape has almost identify fuel milage as a Toyota Camry. Likewise, a Ford F-150 gets nearly the same gas mileage as a Chevy Equinox.
At this point, there's a lot of engine tech that really helps to optimize for a vehicle's power demands. Ford in particular is running very small volume engines at high compression ratios to get some great fuel economy.