Weight breakdown analysis of competitor American cars, listing components as a percentage of total weight.
| Identifier | ExFiles\Box 127\5\ scan0003 | |
| Date | 14th October 1939 guessed | |
| Chevrolet.) Ford. } Plymouth. } Olds. } Pontiac. } Hudson. } Dodge. ) Average wt. of these cars is 3,000 lbs. % of total. | Section. ------------|---------- 30.9 | Body. 5.9 | Frame. 36.8 | Body & frame. 4.71 | Front Sus. (less drums) 8.43 | Rear Sus. (less drums) 3.67 | Brakes. (includes drums) 16.81 | Brakes & Sus. 19.61 | Engine 7.31 | Wheels & Tyres. 7.04 | Ch. Sheet Metal. Wt. saving on Dubonnet due to toggle enabling a stiff spring to be used. | ||
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).