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).
Shift in vehicle taxation to petrol and the design consideration of a smaller engine bore.
| Identifier | Morton\M1.9\ img009 | |
| Date | 1st October 1921 | |
| To C.J. from R.{Sir Henry Royce} -2- R6/G3/10/21 Contd. the taxation, which in the earlier days would have shifted the engine from a very expensive class to one of a much more moderate figure. At the present rate the change of taxation would only be £8. In future I understand that it is possible that the taxation will be shifted from the car to the petrol, which naturally is more just and also encourages economy. The smaller bore was also desired to avoid piston knocks. As soon as we have got the 12/14 H.P. moving we shall give this matter attention. R.{Sir Henry Royce} | ||