If we travel by car, we need to know the route, which we don't need to know in collective transport - but in this case we need a parking space at the destination, we need fuel and we need to pay the toll, which we don't have to worry about with collective transport. Thus, dreamers often associate the car with the conscious self or ego. Therefore a car is an individual symbol, which can be driven and managed by ourselves. As the archetypal basis of every complex, the car also has two poles.
