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 interior dimensions and other data for different 10 HP car bodies.
| Identifier | ExFiles\Box 128\3\ scan0098 | |
| Date | 5th April 1940 | |
| Handwritten top: Rm{William Robotham - Chief Engineer}/Hewitt How does this compare with Mr Greens Standard To Rm{William Robotham - Chief Engineer} 1104 Typed Title: 10 H.P. STANDARD Handwritten: Rm{William Robotham - Chief Engineer} I give below dimensions of the interior of a Standard Super 10 H.P. Body - | | MR GREENS STANDARD 12 | STANDARD | MYTH | ROVER | | :--- | :--- | :--- | :--- | :--- | | Steering wheel clearance from seat cushion | 5 3/4" | 6" | 6 1/4 | 5 | | Steering wheel clearance from seat squab | Max 15 1/2" Min 11" | Max 16" Min 10" | 13.000 9.000 | 16.000 12.000 | | Rear seat knee room | Max 17" Min 12 1/2" | Max 16" min 10" | 17.500 13.500 | 11.500 7.500 | | Front seat height from floor | 13 1/2" | 13 1/2" | 12.000 | 13.000 | | Rear seat height from floor | 15" | 15 1/2" | 15.750 | 15.000 | | Squab to clutch pedal | Max: 40" Min: 35" | Max 43" Min 37" | 46.500 42.000 | — | | Max interior height | 49" | 49" | 47.000 | 47.000 | | Front head room | 37" | 37" | 35.000 | 35.500 | | Rear head room | 34 1/2" | 36" | 34.500 | 34.500 | | Front seat width | 20" | 20" | 22.000 | 20.000 | | Front seat depth | 17" | 17" | 18.000 | 18.000 | | Rear seat width effective | 39" | 39" | 44.000 | 40.250 | | Rear seat depth | 18" | 18" | 20.000 | 18.000 | | Max interior width | 48" | 48" | 51.000 | 49.000 | | Weight of car with no petrol | | 18 cwt. | | 25CWT. | | Pre-war price for Super 10 H.P. | | £185. | | £275 | Bottom left: Rm{William Robotham - Chief Engineer}/AA.{D. Abbot-Anderson} Bottom center: [Signature] Bottom right: 14.4 / 18 / 32.4 | ||