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).
Performance data from the Ticknall Hill Test comparing Essex, Dodge, and Buick cars.
| Identifier | ExFiles\Box 21\6\ Scan007 | |
| Date | 22th December 1920 | |
| 9.F.C. X4217 File 2 TICKNALL HILL TEST - Driver and passenger. 22.12.20 300 lbs. in rear - starting at 10 M.P.H. top gear. Condition of Tests- No wind - dry roads. X4217 X4218 X3317 | | Time. | M.P.H. | |---|---|---| | 1st. Essex Car | 0 mins. | 10 | | | ½ " | 31 | | | 1 " | 39 | | | 1 " 19¾ secs. | 47 | | 2nd. Essex Car | 0 mins. | 10 | | | ½ " | 30 | | | 1 " | 37 | | | 1 " 24 secs. | 46 | | 1st. Dodge Car | 0 mins. | 10 | | | ½ " | 27 | | | 1 " | 30½ | | | 1 " 27½ secs, | 35 | | 2nd. Dodge Car | 0 mins | 10 | | | ½ " | 28 | | | 1 " | 32½ | | | 1 " 24 secs. | 36 | | 1st. Buick Car | 0 mins. | 10 | | | ½ " | 22 | | | 1 " | 26½ | | | 1 " 47 secs. | 34 | | 2nd. Buick Car | 0 mins. | 10 | | | ½ " | 22 | | | 1 " | 26 | | | 1 " 47 secs. | 34 | R.R. Ltd (250) (SD676 19-7-17) MP186/55 | ||