You are looking at the First Generation Rolls-Royce Silver Wraith, offered as a Cabrio, Sedan 2-doors, and Sedan. It is a coachbuilt luxury car built for formal, chauffeur-driven travel.
Rolls-Royce Silver Wraith Engines and Transmissions
You will find a large gasoline Rolls-Royce Silver Wraith engine paired with a rear-wheel-drive drivetrain. Cabrio examples include the 4.3 MT and 4.6 MT with a manual transmission, plus the 4.9 AT automatic. Those are selected powertrain snapshots, not the complete lineup.
Cabrio — Rolls-Royce Silver Wraith Engines and Transmissions
Cabrio Rolls-Royce Silver Wraith Engines and Transmissions