From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Graph showing the petrol consumption of a Mk V Bentley at constant speed.
| Identifier | ExFiles\Box 160\5\ scan0202 | |
| Date | 15th February 1941 guessed | |
| MK V BENTLEY PETROL CONSUMPTION AT CONSTANT SPEED. Y-Axis: MILES PER GALLON. X-Axis: M.P.H. Y-Axis values: 28, 26, 24, 22, 20, 18, 16, 14. X-Axis values: 20, 30, 40, 50, 60, 70. | ||