Dream of crash

I am in the back seat of a car being drive by an old work colleague with another colleague in the front passenger seat, we bear across the motorway and the car flips and crashes into a wall we are all unscathed a policeman comes and takes a report from us, during the crash I'm shooting head gown head down, and covering my head, I feel what feels like shattered glass hitting my arm and hand but after my colleagues just said it was the stones lying on the floor of her car