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 car models.
| Identifier | ExFiles\Box 161\1\ scan0176 | |
| Date | 15th August 1938 | |
| CAR. TOTAL WT. 2 PASS: ROAD WHEEL H.P. AT MAX. LAP SPEED. MAX. LAP SPEED. FRONTAL AREA OF CAR SQ/FEET. C FRONTAL AREA OR SPECIFIC WIND RESIST: ROAD WHEEL H.P. TO LAP @ 80 M.P.H. P.III Close Coupled 2.7 127.5 91 28.8 .00205 86.5 WRAITH Close Coupled 2.05 65 74 27.2 .002 81 B.III 1.84 90 87.2 24.06 .00195 69.8 PACKARD. 1.72 72 81 26.4 .00178 69.2 OLDSMOBILE 1.70 57.5 77 25.6 .00168 64.5 FORD Vee 8. 1.51 58 81.6 23.80 .00150 55 PAULIN 1.70 90 * 97 * 24.5 .00134 51 * Tentative figures. | ||