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).
Comparative table of specifications for various car models from the 1930s.
| Identifier | ExFiles\Box 136\2\ scan0225 | |
| Date | 8th March 1940 guessed | |
| Sheet 3. Cont'd.{John DeLooze - Company Secretary} CAR. LITRES. WEIGHT. REAR AXLE. SPEEDS. RATIOS. GRADIENTS. TYRE SIZE. Morris Twelve-four Series III Aug. 1937. | 1.550 | 22.5 unladen. | 5.25 | 5.25 7.76 12.03 20.85 | .675 .435 .252 | 1 in 12.5 1 in 8.6 1 in 5.5 1 in 3.3 | 5.5 x 16. Flying Standard. Twelve. July 1937 Drop Head Coupe. July 1937. | 1.609 | 20.75 cwt. unladen. | 4.86 | 4.86 7.06 11.8 19.18 | .69 .412 .254 | 1 in 11.2 1 in 8.0 1 in 5.0 1 in 3.0 | 5.25 x 16. Mercedes Benz | 1.697 | 23 cwts. unladen. | 4.1 | 4.1 5.81 10.1 17.3 | .705 .406 .237 | 1 in 15 1 in 10. 1 in 5.8 1 in 3.3 | 5.25 x 16. Austin Saloon "Good Wood". 15.9 H.P. Jan. 1938. | 1.711 | 24 cwt. unladen. | 5.375 | 5.375 8.44 13.28 20.37 | .636 .405 .264 | 1 in 11.5 1 in 8 1 in 4.5 1 in 3. | 5.75 x 16. Triumph Dolomite Special saloon. 1 1/2 litres. March 1938. | 1.767 | 26.75 cwt. (unladen. | 5.0 | 5.0 6.89 10.81 20.5 | .726 .4625 .244 | 1 in 11.8 1 in 7.6 1 in 4.9 1 in 2.5 | 5.50 x 17. Standard Saloon 14 H.P. Aug. 1937. | 1.776 | 25.4 (unladen) | 5.25 | 5.25 7.62 12.75 20.72 | .69 .412 .254 | 1 in 10.4 1 in 7.2 1 in 4.3 1 in 2.7 | 5.75 x 16. Lanchester Saloon Roadster-de-luxe. 14 H.P. Sports. May 1938. | 1.809 | 28 cwt. (unladen) | 5.0 | 5.0 6.8 10.8 16.6 | .736 .463 .307 | 1 in 15.0 1 in 10.5 1 in 6.5 1 in 4.3 | 5.75 x 16. Cont'd.{John DeLooze - Company Secretary} | ||