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 and hill test data for a 'Star' car with a 19.6 RAC rating.
| Identifier | ExFiles\Box 20\6\ Scan005 | |
| Date | 5th February 1910 guessed | |
| Final Test "Star" Cars 19.6 RAC rating TABLE DATA: Column 1: Miles Column 2: Highest speed over 1 lap (2.7668 miles) M.P.H. Column 3: Average speed M.P.H. Column 4: Petrol Consumd galls Column 5: Consumption m.p.g. Column 6: Consumption m.p.g. ROW 1: 13.8 51.39 50.97 0.94 14.3 19.5 Hill Test (standing start) Speed up hill 12.028 m.p.h. Average gradient 1 in 5.027 Length of hill, 117 yds. 1ft 3 in (approx. 1 in 8 91-ft. of 1 in 5, 150 ft. of 1 in 4 | ||