The Jungian reading
The car is the persona-vehicle — how you move through the collective — and its controls are agency itself. Failed brakes mark momentum that can no longer be checked: a career, a relationship, a habit accelerating on its own logic. Driving from the back seat, or as a child, marks authority over the life located in the wrong place. Who else is in the car matters: passengers are what you carry; another driver is who actually holds your wheel.