Various cheats (submitted by Nick):
     Open  config.cfg and add uset g_console "1". Then during the game
run console by pressing "~" and enter any of the following codes:

Cheat code:                       Effect:
cheat truck (n)                   Change truck type, use number from 1-6
cheat skill (n)                   Change your skill rating from 1-4
cheat dmeet                       Meet all drivers
cheat contracts flow (n1)(n2)     Gives you licensed routes at skill 1-4
cheat money (n)                   Set the amount of money you want to have
cheat noticket                    No more speeding or overweight tickets
cheat drivers                     All drivers
cheat stars                       All stars
cheat dealers                     All dealers