The word automobile is just another name for a car. In casual everyday English, we usually use the word car.

The word vehicle describes the more general category - it means a device for transporting people or things. Cars, trucks, buses, motorcycles, military tanks, sleds, horse-drawn wagons, even bicycles can all be considered vehicles.

All cars are also vehicles - but not all vehicles are cars.

Terminology
Terminology :
ethnology : a branch of anthropology that deals with the origin, distribution and distinguishing characteristics of the races of mankind.      .. More >>