rental vs car

rental and car both are nouns.

Word	Noun	Adjective	Verb	Adverb
rental	Yes	Yes	No	No
car	Yes	No	No	No

rental (noun)	car (noun)
the act of paying for the use of something (as an apartment or house or car)	a motor vehicle with four wheels; usually propelled by an internal combustion engine
property that is leased or rented out or let	a wheeled vehicle adapted to the rails of railroad
	where passengers ride up and down
	the compartment that is suspended from an airship and that carries personnel and the cargo and the power plant
	a conveyance for passengers or freight on a cable railway

rental (adjective)	car (adjective)
of or relating to rent
available to rent or lease