i was sitting in a car on a backseat, being chased by someone in a car behind us
Dreams of being chased by someone or something can indicate that there is something in your waking life that you are trying to avoid, or that you feel a sense of danger or threat. Sitting in a car on the backseat could represent a feeling of being passive or being taken along for the ride, rather than having control over the situation.
This dream could be a reflection of feelings of vulnerability or anxiety about a situation in your waking life. It may also indicate that you feel like you are in a race, trying to keep up with others or staying ahead of someone or something. Consider if there is a situation or person in your waking life that could be causing these emotions, and try to address or confront them to alleviate these feelings of being chased or pursued.