SiriusT987 said:
do split the input torque from the engine into two equal parts, but that’s it,

So, that's a locked differential ?
Your suspension values seem ok, but the damping could be higher, and don't forget that stiff rear suspension causes oversteer.
Also it's worth considering to separate the b…

@bmarci I will have a look at these websites also my physics simulation runs at 250 fps so I guess I'm in the ballpark of what you suggested. Also, I want to thank you for the continuous help with vehicle physics they can get tricky, especially at this stage.