prowl car vs panda car

prowl car and panda car both are nouns.

Word	Noun	Adjective	Verb	Adverb
prowl car	Yes	No	No	No
panda car	Yes	No	No	No

As nouns, panda car is a hyponym of prowl car; that is, panda car is a word with a more specific, narrower meaning than prowl car:

prowl car: a car in which policemen cruise the streets; equipped with radiotelephonic communications to headquarters
panda car: a police cruiser

prowl car (noun)	panda car (noun)
a car in which policemen cruise the streets; equipped with radiotelephonic communications to headquarters	a police cruiser