I'm not questioning the
presence of the wobble, more its execution. It shouldn't (and doesn't, according to the videos posted by your good selves) sound the same each time, or wobble quite so much coming back on throttle after being in a state of engine-braking. I understand the mechanics behind it and the complexities of "tuning" the audio, but it worries me that what is meant to be a top-quality sim has sub-par physics simulation, especially of the drivetrain!

But that is whole other kettle of fish...
Anyway, it's not rocket science. As I've said before, these little incidental details need to be handled by the physics engine, not by pre-recorded samples. Clearly no game focused on modern racing can pull this off yet.