Questionhow much is a 1976 cadillac 4 door convertable in ment con. werth
Answerdepends, which model? How many miles
mint meaning concours?, or very nice?
does it have service history, options? all original?
Can't really tell you without more information, but ultimately comes down to what you are willing to pay
You can always look on www.kbb.com and look under vintage tab
