SMS has a couple of very good audio engineers on staff who are more than capable of creating some great sounds but, I'm sure there are cases where they simply don't have high quality reference recordings to work from. Still, there are many inconsistencies in the audio and some go way beyond sample quality. I have to think that they simply didn't have enough time to tidy things up before release of PC2 - at least I hope that's the case. Racing Sim audio is hard to do well; that's quite apparent given how few really convincing examples we have today but, PC2 seems to be pretty sloppy as it stands right now. Hopefully, SMS will continue to improve PC2 sounds for some time. Every sound engine has it's strengths and weaknesses but, if we compare the replay sounds in PC2 vs AC, AC spanks PC2 on several key points and AC doesn't even have the best samples yet, both titles use the same engine. I just sense a lot of short-cuts being taken in PC2 audio as it currently stands.