I relocated the road to be closer to world center and the effect didn’t get less pronounce.
Hmmm… so then it’s likely something with how the plugin moves things. Could you take a peak into the plugins code to check and see what movement method it uses if it uses standard nodes? (Don’t post their source code here since it’s a paid plugin and against TOS, but the method like local/world position offsets etc.) It might provide a bit of insight for you. That said, I don’t currently know of any methods that detach children without changing their world position/local position that isn’t like world position offset in the material, but surely they aren’t using that for car braking.