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 speed trial results for a stock car versus a Dubonnet Stream-lined car.
| Identifier | ExFiles\Box 126\3\ scan0151 | |
| Date | 24th March 1936 | |
| Automobile Club de France COMMISSION TECHNIQUE SUITE ( 3 ) DU PROCES VERBAL D'ESSAI N° 1.305 of 100,909 kilometers, or 63,068 miles, per hour Fuel consumption of the stock car : 17.324 liters per 100 kilometers or 7.332 U.S. gals per 100 miles Mileage - 13,6 miles per gallon Fuel consumption of the Dubonnet Stream-lined car : 10,758 liters per 100 kilometers or 4.553 U.S. gals per 100 miles Mileage - 21,9 miles per gallon 3°- Fuel consumption recorded for 10 laps of the road circuit (5 kms, or 3 1/4 miles, per lap) Total distance covered : 50 kms or 32,5 miles Speed measured by the official time-keeper of the French Automobile Club : 96,164 kilometers, or 60,102 miles per hour, for both cars travelling about 650 feet apart Consumption recorded : Stock car - 28,6 liters per 100 kms, or 12,1 gals per 100 miles Mileage - 8 1/2 miles per gallon Dubonnet Stream-lined car - 22,340 liters per 100 kms or 9,45 gals per 100 miles Mileage - 10,6 miles per gallon. March 24th, 1936 The DIRECTOR OF LABORATORY | ||