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 weight allowances for a car fitted with a sporting body.
| Identifier | ExFiles\Box 47\2\ Scan014 | |
| Date | 1st October 1927 guessed | |
| (2) that the car is fitted with a sporting body and the various weight allowances made when the original springs were fitted are,- Sporting body 784.lbs. Passengers 616 " Luggage 45 " Spares 112 " CWB. | ||