I have example of tank in MMT (link in signature) with suspension based on multiple parts connected by physics constraints. I’ve managed to configure them so that whole thing works without too many issues but abandoned it in the end as the was still very small wobble happening. Speculating that reason for such behavior is wheels slightly clipping into the ground on every frame and then getting pushed out. Switching to custom springs with asymmetric forces applied to chassis and suspension, didn’t helped much either. On top of that, there is unresolved issue with physics bodies colliding with segments of landscape, which leads to wheels or other parts jumping on landscape quite rapidly if you are driving fast. So at the end of the day I’ve switched to using raytraces and sweeps.
But if you look at what @Cristineltrl achieved:https://youtube.com/watch?v=LRheMV3Jx_gthen I must say that stable rig is possible.