I test drove the list below before getting my Stinger GT1. Never made it to the Ford and Nissan dealers.
The worst handling was the Charger, the best handling was the Giulia. I just didn't like the severe first year issues it was having, let alone the lack of dealership service knowledge as most were Fiat dealers. Plus non touch screen and common knowledge Alfa has a horrible record of reliability in general. The Infiniti Q50 was close to the Stinger as far as comfort and sportiness except for the steering yet has like the worst infortainment system of all automakers. They are heavily discounting them on leases and was hard to turn down, until I got an outrageous quote on auto insurance.
I tested the sound system on all of them. The worst was the Camry as far as the subwoofer in multiple cars had the same weird noise, like the suspension was bottoming out on non heavy bass along with bad rear deck rattling. In fact most of the cars had bad rear deck rattling with the exception of the GIT, Sonata,
Regal, Malibu, BMW, and Mazdas. The best for loudest and clarity was the Volkswagen's Fender (Panasonic). Yet it sounded low and mostly from the doors (really left door biased), which ruined the music for me. The Infiniti Bose Premium and the Stinger 15 speaker Harmon Kardon sounded the best well rounded systems to me. (Even though I just realized the floor subs are not working for me, as others have mentioned, and the dealer submitted a trouble ticket to KIA about it. Dealer service guy's Stinger has same issue.)
In the end it was the power, uniqueness, hatchback practicality,
CarPlay with touch screen, sound system (Hopefully fixed and improved soon with even more bass

), fun factor, comfortable ride yet sportiness of the Stinger that won me over. The only downside for me is the MPG and maybe not getting ventilated seats
2018 Kia Optima SX Turbo
2018 Kia Stinger Premium 2.0
2017 Volkswagen Autobahn GTI
2018 Infiniti Q50
2018 Audi A3
2018 Audi S3
2018 Toyota Camry XLE
2018 Toyota Camry XLE V6
2018 Toyota Camry XSE V6
2018 Honda Accord Touring 1.5
2018 Honda Accord Touring 2.0
2017 Alfa Romero Giulia Ti
2017 Chevy Malibu Premier (Don't judge

)
2017 Dodge Charger SVT
2017
Buick Regal GS
2018 Hyundai Sonata Limited 2.0
2018 Hyundai Elantra GT Sport
2018 Hyundai Elantra Limited
2018 Cadillac ATS Premium Luxury
2017 BMW 340i
2018 Mazda 3 Grand Touring
2017.5 Mazda 6 Grand Touring