R3E is the best sounding racing simulator...ever. But there is a sound i miss and why I think it is important is due to the fact that we can't feel G-forces. I am talking about the silence before the tires locks when braking. Some cars have noises from brake discs (static) but most is death silence. I don't know exactly how it should sound but it would be a combination of sounds from brake discs/pads and tire friction increasing with pedal pressure. I know this doesn't sound much in real life but this would help doing better braking without locking the wheels.