I mean what are you comparing it to exactly? One could argue that a brand new Audi S4 is a family sedan or a fully-loaded STI is as well. If your question is what is the realistic cost of ownership, maintenance, and upkeep it is above average when compared to other "average" or "regular" family sedans. The car is not fuel-efficient by any measurement but I would say it has pretty "average" fuel economy when compared to other performance luxury sedans. The pads, rotors, and tires will go out faster than other standard family sedans. Oil changes should be around the same price as other family sedans when compared to a Camry or Accord; perhaps slightly more expensive. If your Stinger is AWD then it will cost more to own than RWD.
Can you be more specific to what you are cross-shopping and trying to understand cost wise? Some people put on less than 3000 miles in 5 years while others put on over 100k miles in that period of time. Some people drive mostly in bumper to bumper traffic while others have a good mix of city/highway with occasional track days thrown in on weekends during warmer months.
Are you going to do all the maintenance work yourself or go to an independent third party shop that you trust or the dealership? It's going to be, overall, cheaper to own for five years than a BMW, Audi, Mercedes, Porsche, Maserati, Jaguar, Alfa Romeo, etc. It will probably be similar in maintenance cost to a Lexus, Acura, Infiniti, Lincoln, Genesis, Cadillac, etc since you can do most of their services cheaper due to a sister company (Lexus=Toyota, Acura=Honda, Infiniti = Nissan, etc). It will probably be more expensive than a similarly priced Camry, Accord, Golf, etc.
Makes sense?
