My first contribution to the BeamNG forums by releasing a mod.
To install manually, drag the .zip you downloaded and put it in the mods folder.
Here is a video so you can get an idea of what it sounds like.
I do not take requests for sound mods.

Outdated Legran V6 Sounds 0.2
Put the sounds of a Buick 3.8L in your LeGran and hear it ROAR!