Motor car is a term that is commonly used to refer to a vehicle that is powered by an engine. However, there are a number of different synonyms for the term motor car that can be used depending on the context. One common synonym is automobile, which is a term that is often used in the United States. Another synonym that is commonly used is car, which is a more general term that can refer to any type of vehicle. Other synonyms for motor car include motor vehicle, automobile, car, vehicle, auto, and motorcar. These terms are all used to describe the same type of vehicle, but each one has its own distinct connotations and associations.