Dream about car sinking in water is a hint for some issue or problem that you have been rejecting and it is now eating-away at you. It is time to let go, whether it be a relationship, goal or situation. You are suppressing past mistakes into your subconscious, instead of learning from them. This is a premonition for a level of attraction between you and your friend, but you are too afraid to act on it. You are trying to cut yourself off from the world.
Car sinking in water is an indication for your brash and hard exterior
You are being accused of some wrongdoing. You are being sidetracked or distracted from achieving your goals. This denotes failure in moving toward your goals. You are feeling lost and not knowing what you want to do with your life.