While GT3 has a small (very small) change in sounds in the game, I think this is one spot where they could defininetly improve. How fun would it be if you could put a more gutsy or a more whiney exhaust (weight, but great sound and maybe even a little power)? I think that would make the game so much cooler, just my opinion. At first, my favorite was the 787B, but after I heard it for a while it started to sound like a computer rev noise, maybe that's just me but that's what it sounds like. Right now my favorite is Ford GT-40 Race Car, I know I know it's everyone's favorite, but I love that gutsy sound.