How to properly anchor camera relative to another object in 3D?

Hello
Im trying to anchor the camera in the drivers seat of a 3D car. Ive tried a lot of things, and i dont know the math that would work for this. The car is a 3D object (and actually a prefab), so i cant use points or the prefab object itself.

How can i get the camera to stay at the same offset on the car as it rotates?

Could you send me the file, (maybe google drive link), I can experiment and see? Would be easier to solve that way.

Have you tried the 3rd person with a small distance? It has offset properties.

why does this actually sort of work? i owe you my life savings