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 table of performance data for various cars, including weight, speed, and wind resistance metrics.
| Identifier | ExFiles\Box 126\3\ scan0104 | |
| Date | 15th August 1938 | |
| 1065 CAR. TOTAL WT. 2 PASS: ROAD WHEEL HP. AT MAX. LAP SPEED. MAX. LAP SPEED. WEIGHT ON FRONT WHEELS TONS. FRONTAL AREA OF CAR SQ. FT. Windage Resi. Factor @ /M.P.H.² C FRONTAL AREA OR SPECIFIC WIND RESISTANCE. ROAD WHEEL H.P. TO LAP @ 80 M.P.H. P.III CLOSE-COUPLED. 2.7 127.5 91 1.2 28.8 .059 .00205 86.5 66 WRAITH CLOSE COUPLED 2.05 65 74 .95 27.2 .055 .002 81 B.III 1.84 90 87.2 .9 24.06 .047 .00195 69.8 PACKARD 1.72 72 81 .8 26.4 .047 .00178 69.2 OLDSMOBILE 1.70 57.5 77 .8 25.6 .043 .00168 64.5 FORD V.8 ✓ 1.51 58 81.6 .75 23.80 .036 .00150 55 PAULIN 1.70 90* 97* .8 24.5 .033 .00134 51 *Tentative figures. 15.8.38. | ||