Other than music, we should have access to these so we can change them to something... better. I would not worry about someone stealing your current ones... no 'ffense but they're terrible.

Anyways, this will appeal to your nerdy base and, in the long run, encourage a talented few to create their own sound effects to contribute to the default game.

Wouldn't it be possible to accomplish this with a plug-in?

gksound.GKLoadSound{soundname='ORIG_SND_NAME',filename='plugins/whatever/new_sound.ogg'}

The only tricky part is you'd have to know the name of the original sound to replace. There's probably a Lua table that lists them all, but I'm not sure where.

Yeah, I don't think we know the names of the sounds :/ (other than music, ofc)

You can get the effect names with /sndshow (or /showsnd? I forgot).
I think this list is pretty complete: http://www.vo-wiki.com/racecar/index.php?title=Soundeffect

I tried overriding them with gkloadsound before ..but it didn't work. It's possible that I did it wrong though.

I tried overriding some existing sounds with gkloadsound and it didn't work for me either. I also tried loading my own uniquely named sound and then loading a second sound to replace it and that also did not work.

The command is /sndshow -- that's pretty cool (overlaps hud chat, though, so to be able to read it use /hudtoggle)

EDIT: gkloadsound returns true both when attempting to override an existing sound (which doesn't seem to work) and when the sound specified in the filepath does not exist. Is this intended?

It'd still be nice if we had direct access to the sounds. Not only would it make this a lot easier, but it would allow us to modify existing sound effects to see if we can get something better out of them.

Also, what about the pitch changes in the engine sounds? With our current access this doesn't seem all too plausible.