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).
Comparative report on a Siddeley car, focusing on its engine and suspension.
| Identifier | ExFiles\Box 23\4\ Scan067 | |
| Date | 19th August 1909 | |
| The engine was not very compact and caused the bonnet to be much larger than on the R.R. The springs appeared to have no flexibility and had a considerable amount of camber in them, the driver explained that the springs were for a heavier body than was at the time fixed. Generally I do not think there was anything in the Siddeley car of very great importance and it did not compare at all favourably with the R.R. | ||