I moved this to "Feature Suggestions". There are likely no more large feature changes for pCARS1, but you never know. I will say in practice the sound on race track doesn't really change much as you move your head. If the car is on your right, that's where the sound is coming from.. That doesn't change much if you were able to turn your head 90 degrees. *If* you were able to turn 180, then yes it should in theory have sound on the left.
I will say that in most cases, if a race car is loud enough, the noise just fills the entire cabin regardless if it's on the left or right. Check this video out of one of my warm-up sessions:
https://youtu.be/3tR0xqYR9_o?t=30s
As the higher class Mustang goes by, the sound was deafening. It completely filled my cockpit (i.e. my left ears were bleeding just as much as my right).
