I dreamed about cars a lot when I was in therapy. I think a car, or any other vehicle, represents your journey. In the beginning I never sat in the drivers seat. A male figure did. I didn't have control. Maybe my T did, he's male (in my dreams it was never my T though, mostly my H). Or maybe it represented ratio? As therapy progressed, my dreams did too. Finally I would be behind the steering wheel. First with a male figure next to me and later on I would be the only person in the car. Totally in control.