| 1925 | 10 | Bentley | Bentley 3276 S4 | 3001-5000 | Rapson | — | — | retired | 19 | Bertie Kensington-Moir / Dudley Benjafield |
| 1925 | 9 | Bentley | Bentley 3276 S4 | 3001-5000 | Rapson | — | — | retired | 64 | John Duff / Frank Clement |
| 1926 | 7 | Bentley Speed Model | Bentley 2998 S4 | 2001-3000 | Dunlop | 6. | 1. | classified | 120 | S.C.H. Sammy Davis / Dudley Benjafield |
| 1926 | 8 | Bentley Speed Model | Bentley 2998 S4 | 2001-3000 | Dunlop | — | — | retired | 72 | George Duller / Frank Clement |
| 1926 | 9 | Bentley Speed Model | Bentley 2998 S4 | 2001-3000 | Dunlop | — | — | retired | 105 | Tommy Thistlethwayte / Clive Gallop |
| 1927 | 1 | Bentley Super Sport | Bentley 4379 S4 | 3001-5000 | Dunlop | — | — | retired | 35 | Frank Clement / Leslie Callingham |
| 1927 | 2 | Bentley Sport | Bentley 2995 S4 | 2001-3000 | Dunlop | — | — | retired | 34 | André d'Erlanger / George Duller |
| 1927 | 3 | Bentley Sport | Bentley 2989 S4 | 2001-3000 | Dunlop | 1. | 1. | classified | 137 | Dudley Benjafield / S.C.H. Sammy Davis |
| 1928 | 2 | Bentley | Bentley 4392 S4 | 3001-5000 | Dunlop | — | — | retired | 71 | Frank Clement / Dudley Benjafield |
| 1928 | 3 | Bentley Sport | Bentley 4392 S4 | 3001-5000 | Dunlop | 5. | 5. | classified | 135 | Tim Birkin / Jean Chassagne |
| 1928 | 4 | Bentley | Bentley 4392 S4 | 3001-5000 | Dunlop | 1. | 1. | classified | 155 | Joël Woolf Babe Barnato / Bernard Rubin |
| 1929 | 1 | Bentley Speed Six | Bentley 6597 S6 | 5001-8000 | Dunlop | 1. | 1. | classified | 174 | Joël Woolf Babe Barnato / Tim Birkin |
| 1929 | 10 | Bentley 4½ Litre | Bentley 4398 S4 | 3001-5000 | Dunlop | 3. | 2. | classified | 159 | Dudley Benjafield / André d'Erlanger |
| 1929 | 11 | Bentley 4½ Litre | Bentley 4398 S4 | 3001-5000 | Dunlop | — | — | retired | 7 | Bernard Rubin / Francis Howe (Francis Curzon - Earl Howe) |
| 1929 | 8 | Bentley 4½ Litre | Bentley 4398 S4 | 3001-5000 | Dunlop | 4. | 3. | classified | 157 | Frank Clement / Jean Chassagne |
| 1929 | 9 | Bentley 4½ Litre | Bentley 4398 S4 | 3001-5000 | Dunlop | 2. | 1. | classified | 167 | Jack Dunfee / Glen Kidston |
| 1929 | x4 | Bentley 4½ Litre | Bentley 4398 S4 | 5001-8000 | Dunlop | — | — | — | 0 | — |
| 1930 | 2 | Bentley Speed Six | Bentley 6597 S6 BF | 5001-8000 | BFGoodrich | 2. | 2. | classified | 173 | Frank Clement / Dick Watney |
| 1930 | 3 | Bentley Speed Six | Bentley 6597 S6 BF | 5001-8000 | BFGoodrich | — | — | retired | 21 | S.C.H. Sammy Davis / Clive Dunfee |
| 1930 | 4 | Bentley Speed Six | Bentley 6597 S6 BF | 5001-8000 | BFGoodrich | 1. | 1. | classified | 179 | Joël Woolf Babe Barnato / Glen Kidston |
Bentley Motors Ltd