touring car vs tourer

touring car and tourer both are nouns.

Word	Noun	Adjective	Verb	Adverb
touring car	Yes	No	No	No
tourer	Yes	No	No	No

As nouns, touring car and tourer are synonyms defined as:

Other synonyms of touring car include phaeton.

touring car (noun)	tourer (noun)
large open car seating four with folding top	large open car seating four with folding top
	someone who travels for pleasure