Coupée
Coupée is the feminine form of the French noun and adjective coupé, derived from couper, meaning to cut. In French, coupée can describe something that has been cut or separated, and historically the term has been used to name a private space within a carriage or railway coach that is separated from the main passenger area.
In automotive usage, coupé (often written coupe in English) designates a passenger car with a fixed roof
In rail transport, coupé refers to a private compartment within a train car, a small enclosed space
Beyond these primary meanings, coupée appears in branding and naming to evoke style or exclusivity. The English