I have 1.2 Suggestions!
-Add Final lap Image!(From Dreamcast version)
-Add Final lap Sound!(From Arcade Version)
-Add 1st place.wav,2nd place.wav,3rd place.wav(From Arcade Version)
-Add Go.wav(From Arcade Version)
I like this idea. The purpose of 1.2./RVGL is to add new content, and it's been a while since we've got to see updates that targeted stuff than car/AI behaviour, multiplayer shenanigans, etc...
Little details like these seem to be easy to implement.
Also, adding to this suggestion, replacing the 1,2,3, GO! models by the ones that were fixed by someone a while ago would be nice as well.