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 comparison estimate between the Bentley III and the K Series Bentley, detailing heavier, lighter, and unaltered components.
| Identifier | ExFiles\Box 100\3\ scan0029 | |
| Date | 24th August 1937 | |
| Handwritten: 200B also 2x8' H58 24.8.37 Estimate of Weight of Bentley III Compared to present K Series Bentley. Heavier Engine 10 lbs. Gearbox 15 Prop. shaft 5 Rear Axle 6 Frame 100 Tyres & Wheels 12. 148 Lighter. Body (Lp{Mr Lappin}'s) 60 lbs. Alum. wings. 40 Brakes 10 Dampers 10 Governor unit 6 Engine Mount. 1 127 Unaltered. Front Suspension. Electrical. Steering. Jacks. Radiator. (NOTE. Front pan is included in frame). | ||