Hey,
this overlay shows drivers in the order they have entered pit road and, if you are on pit road yourself, whether their pit stall is near yours (according to qualifying / provided you're not in a heat racing event). The display duration is adjustable and pit road times can be logged as well.
The overlay requires iRacing to run in (borderless) windowed mode.
Hobbyist work. No warranty or liability, only false positives. 😅