Yes, some sounds are ok, but we are talking about 1000+ cars.
And PD has only 3 single guys to do THAT job:
HOW in the he&" can they do that?!
I play with a Sony 5.1 HT, I turn the volume really up and I have modified the sound field in the options from time to time to get better results...
Some cars sound well, the inmersion is way better but not the ideal one, and honestly I can't put the volume LOUDER at 0300am (at least not always hahaha).
Some LMS cars has really good sound from the hood, but it's just plane sound. It feels really good to the GT standards and other games too in some cases and particular moments, but it lacks other things as well...
I love Gran Turismo but they are far from perfect in that area.
If they improve the sound with proper recording sessions, meaning that the sound is well represented in-game because, let me tell you this guys, the only game where I have found realistic sound in a decent way was in that mod of rFactor: rFactor - Lola DBR1-2 Aston Martin Sound MOD
BUT WAIT, I said that because of this: Project CARS, rFactor and many other sims have better sound than GT, but I always found that moment of digital truth. I mean, GT has that moment almost every single second in the game but we already know that...
In the consoles sims, Forza is an example, the cars sounds great, but for me they are TOO exaggerated and they ended up annoying me.
In Shift they sound well, but the "sections" of the differents sounds represented in-game are too separated between them. For me ears at least, it sounds like, breaking, one second of silence, then engine and a second later breaking again...
At least for me, that's the question I think at the end of the day: is it realistic for you?