Trust me, no realistic driving game should sound like this. My analogy about the car at the end of a long tunnel is spot-on. Maybe I'll record a sample. When it first turned up, after a while away from LFS following the original S1 release, I had upgraded from my old SBLive card to an Audigy. I was told (not by the devs) that it was an identified problem with Audigy cards so I went away. Later, with an Audigy2 I found it was still there so I went away again. Now, with a fresh download, an X-Fi, new motherboard, memory, processor, hard drives and install of XP it's STILL there. No other game does it. I've supported LFS from the very start but I can't see me shelling out on S3 if it ever arrives.