The online racing simulator
about on-line chat in game. Thats nice
Optimize communications in a network game.
Create a group flashing lights who own message type Pit-Stop (White), Zaschel on server came out from the server (green / red).

I think it is not so difficult to implement, but it's sure to improve the game!
When pointing to the correct simofor user reads all of these groups, otherwise the text is not visible. Chat with flood protection can be seen constantly.
you can do that already with insim.
2 packets, 1 button and it will work. Read about InSim and try yourself.
I've got a "HUD" system on my server (Sin'rs) that does something like that - (quickly made) youtube video HERE will show some of the events that 'force' a message, although there are other events (join server, pit, etc) where messages are automatic, and don't need input from Admin(s).

HUD at top of screen, above mirror.

FGED GREDG RDFGDR GSFDG