For my interviews:
I would first go around and do a sort of survey and ask the same question of any driver I could get and any crew chief no matter what team.
The question would be: "Would you like to have an actual speedometer in the cars for pit road speeds?"
Then after I had gathered and compiled that info I would go to Booty Barker and sit down with him asking:
Why aren't there speedometers for pit road speeds?
Would you like to have an actual speedometer in the cars for pit road speeds?
Has this ever been considered by NASCAR?