Are there any 'special' names used to control which music files are played at different game poits i.e. intro_XXX, showroom_XXX, pit_XXX, garage_XXX etc?
No, at the moment music files are not divided into different sections.
I think it might be a nice simple feature to implement, also a 'play once' prefix would be helpful so you can have an impact sound clip when you initially go to a new area and then the preferred track for that area looped.
I was quite surprised how even a simple sound/ambient track lifts the presentation of the various menu/bike display areas and it would be easy to build something basic if I could correctly queue the tracks.