A properly driven FEH will get 42 MPG highway ( 1 passenger, no luggage ) and about 54 MPG in city-like conditions ( no A/C ). The HiHy does have more electric horsepower, but more battery power? Not sure on that one. You have to look at watt hours.

The Ford Escape Hybrid battery has 330v x 6 Amp-hours, or 1980 watt-hours.

What does the HiHy have????