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).
Weight analysis table for various non-Rolls Royce cars, detailing front, rear, and total weights.
| Identifier | ExFiles\Box 132\2\ scan0123 | |
| Date | 26th November 1940 | |
| Weight analysis 26.11.40. 1115 OTHER CARS. Chassis. | FRONT. c. qrs. lbs. | REAR. c. qrs. lbs. | TOTAL. c. qrs. lbs. 3 1/2 litre Jaguar. | 16 | 0 | 7 | 17 | 2 | 7 | 33 | 2 | 7 V.8.Ford. | 13 | 3 | 7 | 13 | 3 | 7 | 27 | 2 | 14 Humber. | 15 | 1 | 0 | 16 | 0 | 7 | 31 | 1 | 7 Buick 8. | 19 | 2 | 0 | 17 | 1 | 7 | 36 | 3 | 7 Oldsmobile. | 15 | 2 | 0 | 16 | 1 | 7 | 31 | 3 | 7 Packard. | 15 | 3 | 0 | 18 | 3 | 7 | 33 | 3 | 7 Vauxhall 25. | 14 | 0 | 7 | 16 | 3 | 7 | 30 | 3 | 14 Rover 10. | 12 | 0 | 14 | 13 | 0 | 0 | 25 | 0 | 21 Standard 8. | 7 | 0 | 0 | 7 | 3 | 0 | 15 | 0 | 0 Morris 8. | 8 | 1 | 7 | 7 | 1 | 14 | 15 | 2 | 0 Vauxhall 10. | 9 | 1 | 0 | 9 | 1 | 0 | 18 | 2 | 0 | ||