How to earn cc

[EVO4]

I wondered how to earn cc points , i searched in Google but the answers were different , some said to use some kind of "contracts " but i didn't find them , some said community racing , and some said rank , what is the truth and how hard is to earn cc points ?

[Atomic]

This is no longer possible because contracts were removed from the game however, you can earn some by completing tasks in the motorpass.

Edit:
As to how hard it is to earn cc, basically tasks give you motorstars. There are daily tasks giving 10 motorstars (2 per task) and then there are weekly challenges, these give 20 motorstars (I think). There is a timeline that show what reward you will receive at a certain level, each level requires 10 motorstars. So you can check the motorpass timeline to see exactly when you will get crew credits. Note that If you don't have premium motorpass, some rewards are locked (I think this is also some cc rewards.)