subcompact vs motorcar

subcompact and motorcar both are nouns.

Word	Noun	Adjective	Verb	Adverb
subcompact	Yes	No	No	No
motorcar	Yes	No	No	No

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

subcompact: a car smaller than a compact car
motorcar: a motor vehicle with four wheels; usually propelled by an internal combustion engine

Other hypernyms of subcompact include auto, automobile, car, machine.

subcompact (noun)	motorcar (noun)
a car smaller than a compact car	a motor vehicle with four wheels; usually propelled by an internal combustion engine