Roll-Royce Phantom Drophead Coupe is permanently open or is it a convertible?

Roll-Royce Phantom Drophead Coupe comes with a soft-top, which in turn is foldable and it does not remain permanently open. The car comes with a V12 engine delivering 75 percent of its torque value at 1000 rpm itself. It comes with ultra luxury features and it has been purely handmade from the scratch. Its rigid aluminum frame and intelligent air suspension makes every ride a magical one. The car comes with a huge price tag of INR 4,50,00,000.