For my first suggestion I think it would be great to have more audio sliders for specific sounds in the game. Instead of having just master, effects, and ambience levels, being able to adjust the volume of engines, tires, collisions, etc on their own would be very nice. Also, If there was a way to use older versions of sounds, before version 0.10. To me after the update all the vehicles just sound like race cars, even the trucks/suvs. I think it would be a great addition if the option was available to use older sounds. Though this may be unrealistic as a suggestion.