From RROCA-info
Number produced: 2320
Original Specification: same as 4 ½ litre Mark VI except automatic gearbox optional.
Increased overall length.
| Chassis Series | Year | Comments |
| B 2-120 RT | 1952/53 | |
| B 1-121 RS | 1952/53 | |
| B 2-500 SR | 1953 | |
| B 1-501 SP | 1953 | |
| B 1-401 TO | 1953 | |
| B 2-600 TN | 1953 | |
| B 1-251 UL | 1953/54 | |
| B 2-250 UM | 1953/54 | |
| B 2-300 WH | 1953/54 | |
| B 1-301 WG | 1954 | |
| B 2-140 XF | 1954 | |
| B 1-331 YA | 1954 | |
| B 2-330 YD | 1954 | |
| B 1-251 ZX | 1954/55 | |
| B 2-250 ZY | 1954/55 |