Dirty tires

On real races and on some other games, when you go in the grass, your tires are dirty so you have less grip for a small time and it can change a race.

But on FM, your tires can’t be dirty. I mean I can spin 1 hour in the grass but when I’ll be back on track, I’ll have the grip of non-dirty tires.

So you can a little bit cut some corners in the grass because your tires aren’t dirty after it so you don’t lose grip so cutting is just beneficial (Like Maple Valley on the last sector).

So I think FM should have dirty tires in the physics

I think this would be a really nice realistic addition!
If it does get added I hope it’s something that can be toggled when creating Free Play of Private Multiplayer races.