These are the results I got when I made a car with suspension in Blender.
I tested a car with and without suspension on the same tests.
the blue car has suspension and the red car has no suspension.
I used the rigid body constraint called: generic spring.
This is the HDRI I used:
https://polyhaven.com/a/autoshop_01
4K / UHD
24fps
Blender 3.1.2
Thank YOU for watching and have a great week!
Glasplon