Alter Settings:
In gameplay when you are in a truck: Press q, i , f12 at the same time, then press the ~ key. This will bring up a console in the lower left of the screen with a heading like this: 4x4> Press enter after each command is put in; the commands are as follows:
settyrescale(number) -- this will determine tire size. (i.e., 4x4>settyrescale(0.5) will give
you tiny tires.)
hanyman() -- will repair your truck
ironman(1) -- no damage to truck
freeman() -- will unlock all modes