Dream about car being submerged in water is a harbinger for an awkward, dull or socially inept person. You are feeling unchallenged and unfulfilled. You need to get rid of something in your life that is useless. This dream sadly draws attention to a difficult or demanding situation. You are no longer deriving as much joy from some aspect of your life as you used to.
Car being submerged in water dream is unfortunately an admonition for disappointments and rejection. You need to fix some problems in your life. You are feeling withdrawn or overly judgmental. The dream is a hint for a conflict between the opposites of your psyche. In the end, your hard work will pay off.
If you dreamt about car being submerged in water:
If you are going out to a party this evening, then be prepared for quite an experience. Those around you will get together in a variety of interesting combinations that may under normal circumstances seem quite odd. Just be aware that someone you are with for the evening may be just fine for this event, but is perhaps best forgotten afterward.