Cueball

I know this thread is quite old but I just wanted to chime in that my g/f's 2016 Ford Fusion SE has the exact same issue. Terrible ride quality and vibration at highway speeds. Same issues with old tires, rebalanced tires, new tires with road force balance etc. It's something in the drivetrain or suspension and obviously a common issue based on the original poster's issue of many cars on the same lot. I rode in an Escape today that felt the same exact way. Maybe it is Ford's poor attempt at all wheel drive, who knows. My personal non-AWD 2011 Fusion SEL rides like a dream and has since day one. Needless to say she is not getting another Fusion when her lease is up late next year.