These "Opera" windows belong on the cars that they were intended for...Lincolns, Cadillacs, etc...It really is no different yesterday as it is today with some peoples taste in custom touches. Some just have no taste and think nothing of ruining (IMO) a great looking car by installing half vinyl tops, opera windows, HUGE wheels, fart cannons, etc...
Sometimes, you have to tell yourself when you see one of these "To each his own, but there is a reason that hasn't been done before and of course IS different"..