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).
Comparison list of technical specifications and prices for British cars with a 16 to 18HP rating.
| Identifier | WestWitteringFiles\V\March1931-September1931\ Scan263 | |
| Date | 18th June 1931 guessed | |
| LIST OF CARS OF 16 to 18HP. RATING. (BRITISH.) Make. Rated HP. Tax. £ No. of cyls. Bore m/m.{Mr Moon / Mr Moore} Stroke m/m.{Mr Moon / Mr Moore} C.C. PRICE. Chassis. Saloon. ALVIS. 16.9 17 6 67.5 100 2145 £500 £695 ARMSTRONG. 15 15 6 65.5 101 1920 295 425 AUSTIN. 15.9 16 6 65.5 111 2240 235 335 CROSSLEY. 15.7 16 6 65 100 1990 395 545 HUMBER. 15.7 16 6 65 106 2110 315 435 LAGONDA. 19.28 20 6 72 120 2931 775 1065 LEA FRANCIS. 15.7 16 6 65 100 1980 425 495 M.{Mr Moon / Mr Moore} G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 17.7 18 6 69 110 2470 550 699 MORRIS (MAJOR). 15 15 6 63.5 102 1938 160 225 " (OXFORD 6.) 15 15 6 63.5 102 1938 185 285 " (ISIS 6.) 17.7 18 6 69 110 2468 250 340 ROVER. 15.7 16 6 65 101.6 2020 250 298 SINGER (SUPER 6.) 15.98 16 6 65.5 95 1920 - 340 STANDARD. 15.98 16 6 65.5 102 2050 190 285 STAR. 17.7 18 6 69 110 2470 320 495 SUNBEAM. 19.2 19 6 70 95 2190 415 650 TALBOT. 17.9 18 6 69.5 100 2920 425 525 VAUXHALL. 16.9 17 6 67.5 95 2020 185 298 WOLSELEY. 15.7 16 6 65 101 2010 215 299 HILLMAN "WIZARD". 15.7 16 6 65 106 2110 - 270 R.{Sir Henry Royce} R.{Sir Henry Royce} 17.7 18 6 69 (2.72") 108 (4.25") 2425 R.{Sir Henry Royce} R.{Sir Henry Royce} 15.7 16 6 65 (2.56") 102 (4.02") 2030 | ||