prowl car vs squad car

prowl car and squad car both are nouns.

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

As nouns, prowl car and squad car are synonyms defined as:

prowl car and squad car: 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, police cruiser.

prowl car (noun)	squad car (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