beach wagon vs motorcar

beach wagon and motorcar both are nouns.

Word	Noun	Adjective	Verb	Adverb
beach wagon	Yes	No	No	No
motorcar	Yes	No	No	No

As nouns, motorcar is a hypernym of beach wagon; that is, motorcar is a word with a broader meaning than beach wagon:

beach wagon: a car that has a long body and rear door with space behind rear seat
motorcar: a motor vehicle with four wheels; usually propelled by an internal combustion engine

Other hypernyms of beach wagon include auto, automobile, car, machine.

beach wagon (noun)	motorcar (noun)
a car that has a long body and rear door with space behind rear seat	a motor vehicle with four wheels; usually propelled by an internal combustion engine