If you dreamed that the car went down: You can make a future investment with a friend that will give you an advantage, and you may need to take action again in security-related issues. To see that your car sinks in your dream indicates that you will collapse in your professional life, increase in financial troubles, and experience developments that will disrupt your order. The sinking of a car also portends feeling helpless and powerless, needing psychological support, sadness and grief. We can say that the person will go through a period where he has to be patient.