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).
List of cars in the Experimental Department with their current status and usage.
| Identifier | ExFiles\Box 20\11\ Scan145 | |
| Date | 30th September 1924 | |
| To Wor.{Arthur Wormald - General Works Manager} from Hs.{Lord Ernest Hives - Chair} X150 Hs{Lord Ernest Hives - Chair}3/LG30.9.24. LIST OF CARS IN EXPL: DEPT: X9770 40/50 HP. 46-PK Being used by Mr. Royce. (EAC.11.) 93-NK Experimental Dept. ( " " ) 98-NK Experimental Dept. (EAC.111.) 9-PK At present garaged at Chateauroux waiting for Springs to run 10,000 miles Test. (EAC.111.) 44-PK Experimental Dept. (EAC.111.) 49-GB Experimental car having special Gearbox, Frame etc. It could not be sold as standard product. 5-EX This chassis has an Expl: Gearbox, with central change, experimental frame etc. This chassis could not be sold as standard product. As soon as the brake tests are completed on this car, we propose dismantling the chassis and handing the standard parts over to either Production or Repair. 6-EX This car is at present in the Repair Dept. having 4-wheel brakes fitted. It will then be returned to R.{Sir Henry Royce} at WW. 7-CA This is a very old experimental 40/50 HP. chassis which we use for destructive tests on the dynamo-meter. Hawk Northcliffe.Special experimental car. Hispano. " " " Mercedes. " " " 20 HP. GF.68 Fitted with special mounting for body. Tests to be carried out. 1-G-1 This car is at WW. being used by Mr. Royce. 5-G-11 This car is at WW. contd :- | ||