| Chassis | Engine | Year | Group | First owner | Next owners (year) | Comment |
|---|---|---|---|---|---|---|
| M10001 | Ford | 1967 | P | Gulf Oil Corp. | Later to UK. | |
| M10002 | Ford | 1967 | P | Gulf Oil Corp. | Crashed Nürburgring 1967. | |
| M10003 | Ford | 1967 | P | Gulf Oil Corp. | Converted to GT40P/1074 1968. | |
| M2.02 | BRM | 1969 | John Wyer/Gulf | |||
| M2.03 | BRM | 1969 | John Wyer/Gulf | |||
| M6.01 | Ford Cosworth DFV | 1972 | B5 | John Wyer/Gulf | ||
| M6.02 | Ford Cosworth DFV | 1972 | B5 | John Wyer/Gulf | ||
| M6.03? | Weslake V12 | 1973 | B5 | John Wyer/Gulf | Coupé that appeared at Test Weekend Le Mans 1973 but never raced. | |
| M6.04 | Ford Cosworth DFV | 1973 | B5 | John Wyer/Gulf | ||
| M6.05 | Ford Cosworth DFV | 1973 | B5 | John Wyer/Gulf | ||
| GR7.01 | Ford Cosworth DFV | 1974 | B5 | John Wyer/Gulf | ?Georg Loos/Gelo (1975) | |
| GR7.02 | Ford Cosworth DFV | 1974 | B5 | John Wyer/Gulf | ||
| GR7.03 | Ford Cosworth DFV | 1974 | B5 | John Wyer/Gulf | ||
| GR7.04 | Ford Cosworth DFV | 1974 | B5 | John Wyer/Gulf | Georg Loos/Gelo (1975) | |
| M12.01 | Ford | 1982 | C/GTP | Raced in IMSA1983. Built by Tiga. It seems that two more M12s were built. |