Differentiating between the terms car and automobile helps us understanding more the philosophy of car design. 
The word automobile has only been around for the past 120 years and is used to describe a vehicle that can propel itself; in other words that thing you use to get from point A to point B as a purely functional part of your life can be considered an automobile. However the word car, which comes from the 2000 year old Roman term “carro” looks at the four wheeled machine in a whole new light.
Simply put the car is a much more personal item, it is the vehicle in which you can make an entrance and let the world know something about yourself.