Shoot me for saying this now but as someone who is actively looking at the Stinger, if it was RWD or manual-only it wouldn't even be on my radar.
No RWD because of the winters here in Montreal. I've lived with RWD here and never, ever again on a daily driver. On a fun weekend summer car? Sure.
No manual because of so many reasons. I still don't understand the obsession with manuals on car forums. Its a transmission from a bygone era and automatics in this segment are (for the most part) VERY good. If I was buying an older used summer sports car, it would be manual all the way. But a GT car for daily driving? Heck no. Never.
I do agree that autos are very good these days, and even on GT cars they can be appropriate - relaxing long distance tourers that can occasionally shake their tail, all good.
but sports cars? Manual. No discussion. Makes excuses for a DCT or auto if you want, but manual is the optimal transmission for engagement - which is the point of a sports car.
Now is the Stinger a sports car or a GT? I would lean more toward the latter for sure, so yeah, auto could work. I personally would love a manual one, but that is just me.
Also, outside of NA, manuals are still alive and well that I can see. Here in Oz there are still a lot of manuals out there.