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).
Table detailing anticipated weight savings for various vehicle components, along with corresponding remarks.
| Identifier | ExFiles\Box 88\3\ scan0108 | |
| Date | 1st February 1935 | |
| 1.2.35. Part | Anticipated Wt. Saving Possible. | Remarks. --- | --- | --- Brake Linkage, Servo, etc. | 30 lbs. | Requires design work. Layout in hand by Girling. Road Springs | 20 lbs. | Experimental Dept. testing. Exhaust System | 20 lbs. | Exptl. Dept. are working on this. Battery | Probably nothing | Electrical Dept. to report. Radiator complete with water | 5 lbs. | Possible more than this if Design can lighten shutters & bottom tank. Rear Axle | 10 lbs. | We think a lightened design should be bump tested. 4 lbs. out of hubs. Petrol Tank | 8 lbs. | Design required. Steering | 8 lbs. | Strengthened steering with lower ratio available for next 10,000 miles test. Shock Absorbers and Control | 6 lbs. | Exptl. Dept. can produce and prove on bump. Front Axle | 4 lbs. | This can be removed from the hubs Magnesium parts mentioned in Hn{F. C. Honeyman - Retail orders}/Rn.{Mr Robinson}18/KW16.1.35 | 23 33 lbs. 13 ozs. | Up to Experimental Dept. Carried Forward | 145 lbs. 13 ozs. | ||