Would be cool if we have more option in the car sound menu ( shift + a ) like separated upshift and downshift sound , possible to load wind and tire sound , backfire etc , just more sliders and option , i like how lfs manage the sound of cars .

would be really nice

Big +1 from me, the shift+a menu could definitely do with an overhaul and expension of features/options in my opinion. It's great that LFS uses it's own sound cynthesis to generate engine sounds so it'd be interesting to see also how this could be expanded upon

yeah

Rev bouncer in game too. Would be awesome.

or a firing order changes

A bit more dynamic sound range with some extra adjustable settings in shift+a would be great. +1.

A global rev limiter for all cars would be amazing, which would eliminate the need for 3rd party tools.