I present you my Drivername Display improvement i made some time ago. Just a simple mod.
I didnt liked the names so close to the cars so i decided to edit the symbol above the car and made the font a bit smaller. In Singleplayer the symbol is red and in multiplayer green ( to be honest i dont know what this exactly means, maybe Ai in red and real driver green? )
If you like to change the size, feel free to edit the system/cfg/name_displayer.ini.