sunshine-roof vs sunroof

sunshine-roof and sunroof both are nouns.

Word	Noun	Adjective	Verb	Adverb
sunshine-roof	Yes	No	No	No
sunroof	Yes	No	No	No

As nouns, sunshine-roof and sunroof are synonyms defined as:

sunshine-roof and sunroof: an automobile roof having a sliding or raisable panel

sunshine-roof (noun)	sunroof (noun)
an automobile roof having a sliding or raisable panel	an automobile roof having a sliding or raisable panel