Yes they are bad, but they would not stop me from having fun with the game.They are terrible, inaccurate. They should be fixed.
How does that tie into what we drive?
AI (slowdown and pit strategy), awful races (to short, stupid opponent selection), low difficulty, ~5 big bugs and the way how online works at the moment do (stop me from having fun).
So for me it would be much more interesting if and when they are going to fix the bugs, if they plan on improving the career or add some challenge to the game or introduce some matching to online than to know if they gonna improve sound or not.
Improved sound will not make me buy a PS4 and GT7, only good gameplay would.