I would say the Stinger is way better in all aspects:
- it sits a bit lower than the Challenger, for me that's a positive
- in curves, the Challenger was not as solid as the Stinger, yet the ride was still harsher (e.g over bumps)
- the Challenger was real fun between June and September here in Michigan, rain, snow or even just cold weather and the tires were slipping like crazy
- the V8 growl is great, except when you need to drive 5hours straight and there is no "mute" button
- I had no safety system on the Challenger and the
side mirrors are a joke, it was a body exercise to always move back and forth to cover the huge blindspot; this was the biggest issue when driving on busy highways or merging
The tire slip was so bad that in a dry but cold (40-50F) weather, I could spin the wheels at 40MPH in 2nd gear with traction control enabled and this was "just" the 5.7, not the much more powerful 6.4L Scatpack. Roundabouts were outright dangerous during cold weather, I had to exit a roundabout with just inertia, because I slipped once at 10MPH with just a touch of throttle. The Stinger feels like it has a shop vac underneath, I can "race" through roundabouts.
I already drove the Stinger in moderate rain, I was amazed by the fact that I did not need to be cautious at all compared to the Challenger. We'll see about the snow and cold weather in a couple of months...