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).
Summary of weights for coachwork parts that do not add torsional stiffness to the chassis, comparing a Cadillac to a 40/50 HP model.
| Identifier | ExFiles\Box 92\1\ scan0123 | |
| Date | 3rd June 1935 | |
| -3- Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}4/KW.3.6.35. Summary of Coachwork Parts that do not add torsional stiffness to the chassis. ------------------------------------ Weight in lbs. Part. Cadillac 40/50 HP. Step Boards 102 64 Wings 192 90 Accessories 140 70 Seat Cushions 194 125 Dashboard - part of Cadillac body only 54 --- --- 682 359 === | ||