| 6.2.1966 | 24 h Daytona | 79 | | Richards / Cuomo | Autosport | NC |
| 6.3.1966 | BRSCC Brands Hatch [Marque] | | | Brian Ashwood | | raced |
| 6.3.1966 | BRSCC Brands Hatch [Marque] | | | John Maun | | raced |
| 20.3.1966 | 60 minute Juarez [Handicap 2.0] | | | Marc Ferland | | 2nd |
| 26.3.1966 | 12 h Sebring | 66 | | Aaltonen / Baker | Donald Healey Motor Co. | 29th |
| 26.3.1966 | 12 h Sebring | 67 | #HANS8-R143 | Hawkins / Mäkinen | Donald Healey Motor Co. | 18th |
| 3.4.1966 | SCCA Regional Kirker Creek [CM+DM+EM+FM+GM+DP] | 26 | | Ron Sears | | DNA |
| 3.4.1966 | SCCA Regional Kirker Creek [CM+DM+EM+FM+GM+DP] | 37 | | David Campbell | | DNA |
| 11.4.1966 | BRSCC Mallory Park [Marque] | 133 | | Roger Eccles | R. Eccles | raced |
| 11.4.1966 | BRSCC Mallory Park [Marque] | 135 | | Peter Smith | P. J. Smith | ?th |
| 11.4.1966 | BRSCC Mallory Park [Marque] | 136 | | David MacRae | D. I. MacRae | raced |
| 11.4.1966 | BRSCC Mallory Park [Marque] | 137 | | C. J. P. Davis | C. J. P. Davis | raced |
| 11.4.1966 | BRSCC Mallory Park [Marque] | 138 | | Terry Watts | D. T. Watts | raced |
| 11.4.1966 | BRSCC Mallory Park [Marque] | 141 | | John Moore | R. Groves | raced |
| 11.4.1966 | BRSCC Mallory Park [Marque] | 142 | | David Corderoy | Cortune Engineering Co. Ltd. | ?th |
| 11.4.1966 | BRSCC Mallory Park [Marque] | 156 | | E. Ward | E. Ward | raced |
| 17.4.1966 | SMRC Ingliston [Marque 1.2] | 62 | | J. I. Johnson | J. I. Johnson | DNA |
| 17.4.1966 | SMRC Ingliston [Marque 1.2] | 64 | | Tom Walkinshaw | T. Walkinshaw | 4th |
| 17.4.1966 | SMRC Ingliston [Marque 1.2] | 66 | | Ian Kirkwood | I. W. N. Kirkwood | DNA |
| 17.4.1966 | SMRC Ingliston [Marque 1.2] | 67 | | D. G. G. Black | D. G. G. Black | DNA |
| 17.4.1966 | SMRC Ingliston [Marque 1.2] | 69 | | Andrew Hutchison | W. Shepherd | 2nd |
| 17.4.1966 | SMRC Ingliston [Marque 1.2] | 74 | | Al Fleming | A. Fleming | DNA |
| 24.4.1966 | BARC Brands Hatch [Marque] | 150 | | John Britten | J. Britten | DNA |
| 24.4.1966 | BARC Brands Hatch [Marque] | 151 | | Keith Grant | K. L. Grant | DNF |
| 24.4.1966 | BARC Brands Hatch [Handicap] | 152 | | J. W. Nicholls | R. M. Doidge | raced |
| 24.4.1966 | BARC Brands Hatch [Marque] | 152 | | R. M. Doidge | R. M. Doidge | DNA |
| 7.5.1966 | BARC Oulton Park [Marque] | 61 | | J. M. Dean | J. M. Dean | 12th |
| 8.5.1966 | 500 mile Brands Hatch | 44 | | Garton / Corderoy | Corture Engineering Co. Ltd. | 15th |
| 8.5.1966 | SMRC Ingliston [Marque 1.2] | 51 | | Al Fleming | A. Fleming | DNA |
| 8.5.1966 | SMRC Ingliston [Marque 1.2] | 52 | | J. C. Forsyth | J. C. Forsyth | 4th |
| 8.5.1966 | SMRC Ingliston [Marque 1.2] | 54 | | Andrew Hutchison | W. Shepherd | DNA |
| 8.5.1966 | SMRC Ingliston [Marque 1.2] | 57 | | W. Ness | A. I. Gray | DNA |
| 8.5.1966 | SMRC Ingliston [Marque 1.2] | 58 | | J. I. Johnson | J. I. Johnson | 5th |
| 8.5.1966 | SMRC Ingliston [Marque 1.2] | 59 | | D. G. G. Black | D. G. G. Black | DNA |
| 8.5.1966 | SMRC Ingliston [Marque 1.2] | 60 | | John Moore | Richard Groves Racing | 2nd |
| 8.5.1966 | SMRC Ingliston [Marque 1.2] | 61 | | Ian Kirkwood | I. W. N. Kirkwood | 3rd |
| 8.5.1966 | SMRC Ingliston [Marque 1.2] | 62 | | Tom Walkinshaw | T. D. Walkinshaw | DNA |
| 8.5.1966 | Targa Florio | 208 | | Aaltonen / Baker | Donald Healey Motor Co. | 20th |
| 22.5.1966 | 1000 km Spa | 19 | | Harris / Garton | Donald Healey Motor Co. | 11th |
| 22.5.1966 | 1000 km Spa | 20 | | Poole / Harris | Donald Healey Motor Co. | 13th |
| 28.5.1966 | MCMRC Oulton Park [Sports] | 5 | | Robert Gibson | Robert Gordon Gibson | DNA |