 After owning this lemon for three years, I've finally been able to trade it in.  It had experienced over 200 separate issues and spent 30 total days in the shop - including for a leaking sunroof, a faulty battery, and a complete control module replacement. Overall fuel economy was only 37 mpg, which is what I'm now getting out of my new non-hybrid Honda mid-size sedan. One of the biggest reasons to turn it in was the overall lack of power - I couldn't accelerate from a stop light without redlining the engine, and merging into traffic at highways speeds was a struggle. And if the 12-volt battery dies, nothing works. You'll have to fold down the rear seats and climb through the trunk pass-through to pull the trunk emergency release handle to access the battery compartment in the trunk. Make sure you can actually fit through there before buying!  (Still not sure why the battery died in the first place after only two years - everything in the car has an auto-off feature to prevent draining the battery).But the biggest reason to get rid of this is the possibility of another major electrical fault while driving - the last time it happened, everything electrical went out while cruising down the road at 50 mph, including dashboard indicators - the only thing on the dash that still worked was the speedometer & tach. The navigation and entertainment systems stopped working. The climate control system quit working & I couldn't roll down the windows (this happened in June).  All safety features were also inoperable (adaptive cruise, blind spot, rear camera, and collision warning), and I had no idea if the airbags would deploy if I got into an accident. The intelligent access system quit working, and the only way to start the car was to have the key in the console backup slot.  The dealer had to replace a number of control modules and the entire console computer system due to poor workmanship from the factory that allowed water to saturate electronic components.  I wonder how many other systems got soaked but weren't replaced. Water damage does strange things to computers, especially over time when corrosion starts to set in. I don't want to be saddled with those repair costs now that the warranty has expired.Overall, a very bad investment for me. I guess out of every 10,000 cars, one is faulty, and I got it this time. But the lack of power and poor fuel economy are universal problems for this car, so select a different engine.  Even if it had gotten the advertised 47 mpg (later revised to 42 by Ford), the cost savings in fuel does not equal the cost savings of selecting a standard engine instead of a hybrid.  And the car *still* has three outstanding safety recalls (including the Takata airbag issue) that the dealer can't seem to find parts to fix...  Out of the twelve cars I've owned throughout my life, this one has been the WORST, and I will never again consider purchasing a Ford vehicle.