Something of note if you're stuck for .wavs for your sound mods.....

[Rogerbee]

I opened up folders for some of my old Project Cars mod cars and found that their audio was in .fsb format. So, you can extract the .wavs using FSBExtractor. I know, if there was a sound you liked in Project Cars and you know what you're doing with sound mods, which I found I so don't, you now have another source for your .wavs.