Dreaming of car accident is very common and it should not be ignored. The straight forward meaning of car accident is that you will be facing unexpected problems in life or some kind of financial damage.
Today it is very common to see dreams of car accident as many people see such things in real life or on television. Dreaming of car accidents after witnessing an intense incident does not have any value as it is just a mere extension of what happened during the daytime. The dream to have a meaning it should happen naturally not under influence of daytime activity.
Seeing people dying or blood or broken body parts after car accident means that you will need to be careful about your activities and avoid any kind of unwanted activities.
Seeing two cars colliding or car colliding with another vehicle means you will get into fight with unknown people.
Seeing you driving and meeting with accident means you need to be careful while using vehicle.
Seeing another person driving and you getting into accident means you will suffer due to the action of another person in future.