Rolls-Royce Phantom IV Straight-Eight (5.7L)

Inline-8 (straight-eight), F-head5.7L (5,675 cc)Naturally aspirated1950-1956164 hp

Designed by Rolls-Royce (Crewe). The ONLY straight-eight Rolls-Royce ever built; derived from the RR B-range military engines. Fitted solely to the 18 royal / head-of-state Phantom IVs.