Even after you have exhausted your EV range? I'm curious why you think that given that the EPA highway number for the FFE is 5 MPG less than the FFH? It would be very interesting to have a side by side MPG face off on a 500 mile trip. I'm putting my money on the FFH given its lighter weight, taller axle ratio and the EPA numbers.
When we brought our FFE home, our charger did not work (bad cord). We drove it for 3 weeks without being able to charge. We on the average got well over the FFH's effeciency (mostly over 50). Bringing it home (160 miles) with no charge, we achieved 57 MPG (that is MPG and not MPGe because it was not charged up). There was no tailwind, no headwind, just perfect driving conditions in late evening. You have to remember this is a new 16 and not "broken" in. Our FFH didn't really start to work the best until 10K miles. The hybrid part in the Energi is much more "aggressive" in both charging and discharging.
The only way we could get a charge on the battery, at first, was to go over (and back) a local mountain pass and let the car charge during decent both ways. After putting 15 miles of charge were we able to even feel the joy of EV driving. Taking it back to the dealership to get the cord replaced, we again did over 50 without EV. and then got over 60 on the way back, pushing a headwind and with a full charge, and have been enjoying 50+ MPG since.
I think Ford underrated the FFE because of being gun shy over the 47/47/47. I think these cars are now "rated" to wow you. I think Ford knows they will far exceed the EPA numbers with this car and it was done on purpose.
I am one happy camper!
Edited by rjent, 14 June 2015 - 09:11 AM.