I picked up my Energi up about 2 weeks ago and since then I have put over 1700 miles on it. Around town the MPG will be hard to judge since you can charge at anytime. I have driven the car to both Las Vegas and Lake Havasu city from Orange County CA. For both trips I avg'd about 38.5 MPG. I think that is good for a mid size car. My prius plug-in avg'd about 46mpg for the same trips. The fusion is a MUCH better car than the Prius, so I will take the slight loss with a smile. For commuting I drive to LA everyday from OC, so far with one charge in the morning and driving 100miles each day, I have avg'd about 52mpg, the prius was 58mpg.