A coupé or coupe (from the French verb couper, to cut) is a closed car body style, the precise definition of which varies from manufacturer to manufacturer, and over time. Coupés are often hardtopped sports cars or sporty variants of sedan (saloon) body styles, with doors commonly reduced from 4 to 2, and a close-coupled interior (i.e., the rear seat placed further forward than in a standard sedan) offering either two seats or 2+2 seating (space for two passengers in the front and two occasional passengers or children in the rear). Before the days of motorized vehicles, the word referred to the front or after compartment of a Continental stagecoach.

So yeah you’re right in a way but depending on how you view things a coupe is pretty much a variant of a sedan, so it is still a sedan.