A convertible is a type of automobile of various automobile body styles that can convert from open-air (top-down or topless) mode to a provisional enclosed (roofed or top-up) mode.
Roof designs have varied widely and have evolved from the earliest models, where roofs were demountable and/or detachable. Contemporary roofs are often hinged to fold away, either into a recess behind the rear seats or into the boot or trunk of the vehicle. The roof may operate either manually or automatically via hydraulic or electrical actuators, and the roof itself may be constructed of soft or rigid material. Soft-tops are made of vinyl, canvas or other textile material, while hard-tops are made of steel, aluminum, plastic, or other rigid materials.
The majority of convertible cars are two door models. Only a few four door convertibles exist.
Convertibles may also be referred to as roadster, cabriolet, cabrio, tourer or drophead coupé and the colloquial terms drop top and rag top are also used. Hard-top convertibles may be called coupé cabriolet, coupé convertible, retractable hardtop or, when equipped with two seats, coupé roadster/roadster coupé.