prowl car vs police cruiser

prowl car and police cruiser both are nouns.

Word	Noun	Adjective	Verb	Adverb
prowl car	Yes	No	No	No
police cruiser	Yes	No	No	No

As nouns, prowl car and police cruiser are synonyms defined as:

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

Other synonyms of prowl car include cruiser, patrol car, police car, squad car.

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