I have played this game for over 3 months and I absolutely love it.But I have some ideas about my suggestion about adding flags and reasons to use those flags.
1:Blue Flag.Blue Flag.Blue Flag(Say it like when Sebastian Vettel approached backmarkers):Use the flag to backmarkers was approached by front runners
2.Yellow flag:Use it when there is a car has a mechanical issue or runs out of fuel or a crash(if crash is added to iGP
3.Red Flag:When the race was stopped due to very heavy rain or a huge pile of cars crashing into each other(if crash is added)
4.Black Flag:To a driver that drives very illegally that the stewarts have to disqualify him(if penalty is added to iGP)
5.Mechanical issue flag:To a driver that has a mechanical issue that can be fixed(if fixing parts is allow in iGP)
6.Safety Car flag(double yellow flag).When there is a crash that it needs a Safety Car(if crashes and Safety car are added)
7.Green wFlag:When the race is clear to go
8.Black and White Flag:For those who ignores yellow flag or do illegal racing that needs to be penalised by time penalty lol.
9.Chequered Flag:You know what that means if you don't know what that means then you don't watch racing shows and if you don't watch racing shows then why are you playing this game.