tow car vs wrecker

tow car and wrecker both are nouns.

Word	Noun	Adjective	Verb	Adverb
tow car	Yes	No	No	No
wrecker	Yes	No	No	No

As nouns, tow car and wrecker are synonyms defined as:

tow car and wrecker: a truck equipped to hoist and pull wrecked cars (or to remove cars from no-parking zones)

Other synonyms of tow car include tow truck.

tow car (noun)	wrecker (noun)
a truck equipped to hoist and pull wrecked cars (or to remove cars from no-parking zones)	a truck equipped to hoist and pull wrecked cars (or to remove cars from no-parking zones)
	someone who commits sabotage or deliberately causes wrecks
	someone who demolishes or dismantles buildings as a job