SoCal - To respond to your original post, my recent experience:
Up until a few days ago, my 3 month-old 2018 GT2 AWD was mostly a garage queen, waiting until fair weather. Well, I got tired of waiting, so ...
With all the heavy snowfall in the Sierras, I decided to put the Kia to the test on a particularly snowy day, and began by shredding over I-80 (Reno to Sacramento), then down CA-49 to Mariposa, back up CA-49 to Jackson (Bear Valley / Coulterville is a heavenly Richter Scale of switchbacks and extreme elevation changes), and finally returning over CA-88 (past Silver Lk and Kirkwood) in heavy snowfall. Traffic was very light the entire trip, and Valentine 1 protected my insurance rates!
I was very impressed with the the car's balance while traversing snow-covered roads under throttle (corners included). The car felt solid and planted, traction was seamless, and I never felt uneasy with a threatened slide.
I returned home after 11 hours of elated exhaustion. The Stinger is one of the more confident AWD road vehicles I have ever driven in the snow. It is not a track car (like my S2000) but is a great winter GT car ... can't wait to take it back to the mountains for more snow-play! Wheeeee
BTW, for winter driving, I am running General Altimax RT 43 235/45R18 V-rated M+S tires all 4 corners.
Finally, as a disclaimer, I have decades of track experience with cars & motorcycles, and have been testing Newton's laws on snowy roads since the 1960s ... I do not recommend aggressive driving on public roads!