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).
Comparative data table detailing specifications and performance for various motor cars.
| Identifier | ExFiles\Box 29\3\ Scan250 | |
| Date | 23th July 1930 guessed | |
| HEADERS: CAR . TYPE BORE . STROKE, DISPLACEMENT, CAR WT. TOTAL EFFECTIVE TYRE. CIRCUM. 50 LBS./□" DIRECT DRIVE RATIO TYPE OF MATRIX. TOP WATER TEMP. AT 60 M.P.H. AT'S TEMP 20°C VENTILATED BONNET MAX. LAP SPEED. ROW 1: CAR: MARMON, 8.79, R.A.C. RATING 32.5, SEDAN 5 SEATER SPECS: 3 3/16 x 4 3/4, 4960 C.C., COMP. RATIO 5.5-1, WT. 4200 LBS. TYRE CIRCUM: 95.75 INS. DRIVE RATIO: 4.45 - 1 MATRIX: ZIG ZAG RIBBON WITH INDIRECT FINS WATER TEMP: 85°C AT 53 M.P.H. ENGINE PERFORMANCE UNSATISFACTORY MAX SPEED: ESTIMATED 67 M.P.H. ROW 2: CAR: HISPANO, 1927, 2 SEATER COUPE, R.A.C. RATING. SPECS: 3.938 x 5.512, 6597 C.C., WT. 5000 LBS. TYRE CIRCUM: 108.0 INS. DRIVE RATIO: 3.375 - 1 MATRIX: ZIG ZAG RIBBON WITH INDIRECT FINS WATER TEMP: 74°C. MAX SPEED: 85 M.P.H. C.O. OPEN. ROW 3: CAR: PIERCE ARROW, 1930, 6 SEATER LIMOUSINE, R.A.C. RATING 40 H.P. SPECS: 3.5 x 5.0, 6300 C.C., COMP. RATIO 5-1, WT. 5200 LBS. TYRE CIRCUM: 98.0 INS. DRIVE RATIO: 4.5 - 1 MATRIX: ZIG ZAG RIBBON WITH INDIRECT FINS WATER TEMP: 82°C. MAX SPEED: 69.5 M.P.H. ROW 4: CAR: GRAHAM PAIGE. 1930, 5 SEATER WEYMAN. RATING 29.4 SPECS: 88.9 x 127, 4700 C.C., COMP. RATIO 5.35, WT. 4124 LBS. TYRE CIRCUM: 95.25 INS. DRIVE RATIO: 3.643 MATRIX: FIN AND TUBE. WATER TEMP: 77°C MAX SPEED: 71-66 M.P.H. ROW 5: CAR: P II 19 Ex., CAB DE VILLE, 7 SEATER, R.A.C. 43.4 H.P. SPECS: 4.25 x 5.5, 7680 C.C., COMP. RATIO 4.6, WT. 5362. TYRE CIRCUM: 105 INS. DRIVE RATIO: 3.727 MATRIX: PLAIN AIR TUBE. WATER TEMP: 71°C. MAX SPEED: 82.5 M.P.H. C.O. OPEN. | ||