Here's a behaviorless way to do it.
First chain tries to replicate the stretch from pinning to pinned objects.
The rest order from head to tail with an adjustable stretch stiffness.
https://www.dropbox.com/scl/fi/yzrr05uk5ch8fex2hrqrv/chain_stiffness.c3p?rlkey=zrmf55xltlcqht67inff5ic27&st=yuj5hlku
Might be useful or give some ideas.
Both are great options. It looks so smooth right now as it is, I hate to mess with it. haha. But I may need to resort to one of these two options.
R0J0hound Very elegant solution, I would need to figure out how to make it work with the car behavior as the head and the other pieces trailing behind like it does when dragging. Also make it "squish" past default when decelerating. But a great starting point. Thanks.