IMO for a car to car comparison, I think you better off comparing the Stinger to the Lincoln MKZ. Both are round the 41k sticker with the V6 twin turbo and AWD.
Fusion Sport is close to 10k cheaper than both of those cars (when equipped with the twin turbo and AWD). My feeling/guess is the MKZ and the Stinger are both a bit more "carefully" put together.
FWIW, I do have a couple of creeks here and there on my sport, a couple of quirks... but I purchased my Sport with this expectation. My friend has a 2011 Mustang and he gave me the scoop on what to expect with Fords in general.
This being said, given what I could afford financially, I would buy the Sport again in a heartbeat if I had to do it over again.
If I was a little more wealthy and had to make a car purchase, I'd probably go for the Stinger or the MKZ.
2017 Fusion Sport - Shadow Black ~ 401A, Driver Assist, Moonroof
Steeda Cold Air, Strut Tower Brace, and Rear Swaybar
1996 Toyota Camry - Retired
2004 Mazda RX8 GT - Retired
2011 Hyundai Genesis Coupe 3.8 GT - Retired