Dream about someone crashing car is a metaphor for your flexibility in some situation. You are looking for safe and controlled release. You are not seeing things that are happening around you. Your dream is a harbinger for broken family connections or failed attempts in reestablishing familial ties. You are taking on too much.
Someone crashing car dream denotes your fears of making the wrong choice and going on the wrong path. You are still hanging to some part of your past and are not completely ready to move forward. Your subconscious feelings must be confronted and dealt with before it gets out of control and expresses itself in a violent manner. This dream is a signal for your love life and the pressure to find someone to spend your life with. There is something lacking in your idea or argument.
If you dreamt about someone crashing car:
There is certainly no holding back someone today especially if they intend to let you in on the secret of how they feel about you. Although you generally like to keep things on a more platonic and friendly level, you too may be in the mood for some passionate revelation and could quite enjoy the attention.