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).
List of various car models with their engine sizes and recorded maximum speeds.
| Identifier | ExFiles\Box 160\5\ scan0064 | |
| Date | 9th December 1940 | |
| Rm.{William Robotham - Chief Engineer}8/ML.9.12.40. TECHNICAL JOURNAL MAXIMUM SPEEDS. Car. Size. Maximum speed printed. Alvis 4.3 litres. 103 m.p.h. Atlanta 4 litres. 95 m.p.h. Ford Mercury 4 litres. 90 m.p.h. Lincoln Zephyr 4.375 " 90.91 m.p.h. Railton 4 litres. 91.84 m.p.h. B.M.W. 2 litres. 93 m.p.h. Darracq 4 litres. 95-100 m.p.h. Jaguar 3½ litres. 90.90 m.p.h. Hotchkiss 3½ litres. 97.83 m.p.h. Hotchkiss 3½ litres. 95.74 m.p.h. Delahaye 3½ litres. 100.00 m.p.h. Lagonda 6 4½ litres. 94.74 m.p.h. Lagonda 6 4½ litres. 96.77 m.p.h. Lagonda 6 4½ litres. 100.56 m.p.h. Lagonda 12 4½ litres. 100.00 m.p.h. Bentley 6 4¼ litres April 7th, 1939. 92.78 m.p.h. Bentley 6 4¼ litres Decbr 4th, 1940. 85 - 90 m.p.h. Rm.{William Robotham - Chief Engineer} | ||