wrecker vs tow car

wrecker and tow car both are nouns.

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

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

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

Other synonyms of wrecker include tow truck.

wrecker (noun)	tow car (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