F1 2016 track or tyre grip edit?

[saschaXD17]

How and where can i rise the grip of tracks or tyres? I only want to rise it a little bit to get quicker laps from the ki and also me.
thanks for any help

 

[saschaXD17]

Nobody knows?

 

[Andy_J]

Nobody knows?

Nope. I suppose most are relatively happy with the grip levels as they are. Increasing grip is a cheat really.