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).
Fuel consumption and road test results for several cars.
| Identifier | ExFiles\Box 147\5\ scan0002 | |
| Date | 26th November 1907 | |
| Run to London on No. 1 T.T. car by Durlacher Road part of the way heavy. 24 1/5 Miles per gallon Ballast to full load. No 6 (1907) 60540 driven by M.J. 26/11/07. to London etc. long body, + ? passengers. 215 miles on 15 gall. worked out by M.J. as 13.87 per gall No 6, 60511 of bat & Feddle (termin) 20 direct drive. 5 up 8 cwt body. Time taken. mins. consumption. 10.6 per gallon. 60551. Bexhill to Glasgow, under club observation 20.69 per gall. 30 cwt car (no hood) | ||