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).
Performance tests conducted at Brooklands, comparing various car configurations.
| Identifier | ExFiles\Box 155\1\ scan0188 | |
| Date | 9th August 1935 | |
| Y1320 Brooklands Tests - 9.8.35. The following figures are given as they were taken on the same day as those for E.R. Hall's car. 1-B-IV. Lap speed 115.4 secs = 86.46 M.P.H. 1/2 mile 20.8 " = 88.24 " 4-B-IV. Lap speed 110.8 secs = 90.22 M.P.H. 1/2 mile 19.8 " = 92.78 " B-11-BN{W.O. Bentley / Mr Barrington} - Mr. Fairey. 10/41 axle, H.C. Head. Lap speed 113.5 secs = 87.84 M.P.H. 1/2 mile 20.0 " = 90.00 " Half mile - start full throttle 10 M.P.H. Average 37 secs. Hs{Lord Ernest Hives - Chair}/F.Dodd. | ||