[Responsibility2nd]

You kind of start to wonder why this car was so long if it was meant to be a coupé

The writer doesn't seem to know what the classic definition of a coupe is. A sedan has an a-pillar behind the front doors. If there is no pillar, it is not a sedan.
 

 

Actuallly, the A pillar is the first pillar by the windshiled. A coupe (like the 1975 Coupe De Ville) had no traditional B pillar. Sedans have the B pillar.

[ZirconEncrustedTweezers]

That isn’t entirely true. There were also hardtop sedans back in the heyday of American iron.

I shudder to think of how flimsy a hardtop sedan would be using unibody construction...