 I put a lot of miles on it under a  wide variety of conditions. I live in Southern California, so the only thing I cannot attest to would be significant changes in weather. I bought this car with a rated MPG of 47/47. Ford sent me a check for $750 when they corrected the ratings. For the amount I drive, this did not cover the amount of savings I had anticipated,  but I guess it's better than nothing. It's a beautiful car with a minimal amount of problems. It feels like a boat and takes some getting used to its size. The departure angles on inclines/declines is not good due to the air dam. My front paint has already begun to wear on the front bumper from so much driving. Update 5/2018:Relocated to Texas and still driving. Repair costs have been next to none outside of general maintenance. MyFord Touch w/ Navigation barely gets used thanks to Bluetooth/Cellphone. The vehicle has held up extremely well. Gas mileage is the same if not better than when originally purchased. You have to drive it like your grandma stole it to see MPG benefit. I've had about 4 recalls which were easy to have done and nothing that prevented me from driving the Fusion on a daily basis.