Solved

New player with some questions

can someone explain why the tire economy option is grey. Like instead of being highlighted in red like the rest, it’s grey. Same as some of the stats of some of my drivers after a race. 

I don't know which site u r talking about. I guess it is ur car development. Low values are shown in red. Medium values in grey. High values are green. That's a common pattern in iGP. There is no deeper meaning to it.