Dreaming of a police car can symbolize movement, travel, and the journey of life. The meaning of this dream can vary based on your current life circumstances, emotions, and experiences. Your personal feelings and experiences related to police cars can help you understand the significance of this dream. This symbol may be a message from your subconscious, encouraging you to increase your awareness of different aspects of your life.
From Imam Muhammad Ibn Seerin's Dictionary of Dreams According to Islamic Inner Traditions â entry "Car" (page 69).
In a dream, a car represents someone who properly manages his life, for a car is made from many well coordinated parts, and carries many things and transports them from one location to another. If one sees himself riding a litter that is carried by people in a dream, it means that he will preside over people or beget a son who will be elevated in rank. If a traveller sees a car in his dream, it means that his trip will take a slow turn and he will be delayed. A car in a dream also signifies dignity, honor, advancement and attainment. If one sees himselfholding to a car or running after it in a dream, it means that he will lobby someone in authority and profit from him as much as his nearness to such a car. If one sees himself riding on a cargo vehicle in a dream, it means suffering from distress and sorrow. (Also see Carrier; Racing)
Note: Islamic dream interpretation depends on the dreamer's circumstances and state. This is a general guide drawn directly from the source book.