I want to add grip to all trucks and there are 2 ways of doing it... One is modifying all wheels and the other is modifying the terrain. I tried the wheels but its a mess and very tedious so I wasn wondering about the terrain...

However I dont understand how the xml of terrain work or what values I should modify. I just want 50% more grip for everything. And if its not possible, just for snow and mud.


Anyone knows how to do this?