rubber tire vs car tire

rubber tire and car tire both are nouns.

Word	Noun	Adjective	Verb	Adverb
rubber tire	Yes	No	No	No
car tire	Yes	No	No	No

As nouns, rubber tire and car tire are synonyms defined as:

rubber tire and car tire: a tire consisting of a rubber ring around the rim of an automobile wheel

Other synonyms of rubber tire include auto tire, automobile tire.

rubber tire (noun)	car tire (noun)
a tire consisting of a rubber ring around the rim of an automobile wheel	a tire consisting of a rubber ring around the rim of an automobile wheel