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).
Comparison of testing mileage between the B.V. and Wraith models ahead of the Motor Show.
| Identifier | ExFiles\Box 99\4\ scan0276 | |
| Date | 8th June 1939 | |
| -3- Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}8/MH.{M. Huckerby}8.6.39. Although the total mileage the same number of months before the Motor Show is less on B.V. than it was on Wraith, we consider that by the Motor Show, or even in two month's time from now, it will have exceeded by a large amount the testing we have done on Wraith. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||