 We bought a new 2011 Ford Fusion Sport in November of 2010.  We traded it in January 2017 with 95K miles.  We never had any major problems with the car but the brakes would exhibit the high speed vibration you get from warped rotors about every 25K miles.  Easy and relatively cheap to fix but an annoying, and recurring problem.  The steering and front suspension developed some creaks and groans at about 60K that only seem to happen when it is hot outside.  The only other issue we encountered was that the air conditioner would just stop working for no reason.  Sometimes you could turn the car off and back on and it would be fine.  There is a known sensor issue with these cars that can cause this and it can be pricey to have it fixed because it's buried in the middle of the dash.  Aside from those things, this car worked as intended for just over 6 years.  It was the preferred vehicle for road trips because it was roomy and comfortable.  Handling was good for an American sedan (it can't touch a Mazda 6 or a German sedan).  The Sony stereo is "adequate", it won't win any sound quality awards but not bad for a stock system.  Headlights are not great, HIDs were not an option when we got it but it sure needs them.  Finally, fuel economy was about 24.5 MPG combined.  We could get around 27 on long highway trips.