Photographic comparison of lap speeds between a Standard Saloon and a streamlined B.23.AE model.
| Identifier | ExFiles\Box 155\1\ scan0149 | |
| Date | 11th July 1934 guessed | |
| Standard Saloon Lap Speed 88 M.P.H B. 23. AE Lap Speep 94.4 M-P-H | ||
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).