| 1.1.1966 | GP East London | 85 | #6051 | Jackie Epstein | Epstein Enterprises Ltd. | DNA |
| 1.1.1966 | East London [T/GT+1.6] | 85 | #6051 | Jackie Epstein | Epstein Enterprises Ltd. | DNA |
| 6.2.1966 | 24 h Daytona | 22 | #5893 | Rindt / Bondurant | North American Racing Team | 9th |
| 6.2.1966 | 24 h Daytona | 23 | #5895 | Konig / Clarke / Hurt | Peter Clarke | 13th |
| 6.2.1966 | 24 h Daytona | 24 | #6053 | Ireland / Hailwood / Drummond | Drummond Racing Organisation | DNF |
| 6.2.1966 | 24 h Daytona | 26 | #5843 | "Eldé" / Ickx | Ecurie Francorchamps | DNF |
| 6.2.1966 | 24 h Daytona | 27 | #5897a | Piper / Attwood | David Piper | 15th |
| 6.2.1966 | 24 h Daytona | 28 | #5907 | Hulme / Wilson | Team Chamaco Collect | DNF |
| 6.2.1966 | 24 h Daytona | 29 | #6051 | Hawkins / Epstein | Epstein Enterprises Ltd. | DNF |
| 6.2.1966 | 24 h Daytona | 32 | #5901 | Follmer / Wester / Hawkins | North American Racing Team | DNF |
| 27.2.1966 | Sandown | | | Spencer Martin | | 3rd |
| 7.3.1966 | Australian TT | | | Spencer Martin | | 3rd |
| 26.3.1966 | 12 h Sebring | 33 | #5845 | Swanson / Ennis | Arthur W. Swanson | DNF |
| 27.3.1966 | National Zolder | 102 | #5843 | "Jean Beurlys" | | 1st |
| 8.4.1966 | Scott-Brown Memorial Snetterton | 22 | | Vic Wilson | Team Chamaco Collect | DNA |
| 24.4.1966 | BARC Brands Hatch [Special GT] | 61 | #6105 | Ron Fry | R. Fry | DNA |
| 25.4.1966 | 1000 km Monza | 18 | #5891 | Vaccarella / Facetti | Scuderia St. Ambroeus | DNF |
| 25.4.1966 | 1000 km Monza | 19 | #5895 | Clarke / Konig | Peter Clarke | DNA |
| 25.4.1966 | 1000 km Monza | 20 | #6023 | Noblet / "Eldé" | Ecurie Francorchamps | DNF |
| 25.4.1966 | 1000 km Monza | 21 | #6119 | de Siebenthal / Peixinho | António Peixinho | 8th |
| 25.4.1966 | 1000 km Monza | 22 | #5845 | Swanson / Ennis | Squadra Bardahl | DNF |
| 25.4.1966 | 1000 km Monza | | | Vic Wilson | | DNA |
| 25.4.1966 | 1000 km Monza | | #6051 | Hawkins / Epstein | Epstein Enterprises Ltd. | DNA |
| 30.4.1966 | Tourist Trophy | 40 | | Bob Bondurant | David Piper | DNS |
| 30.4.1966 | Tourist Trophy | 50 | | Alan Rees | Team Chamaco Collect | 11th |
| 30.4.1966 | Tourist Trophy | 52 | #5895 | Clarke / Konig | Peter Clarke | DNA |
| 7.5.1966 | BARC Oulton Park [Special GT] | 119 | #5895 | Peter Clarke | P. Clarke | DNS |
| 7.5.1966 | BARC Oulton Park [Formula Libre] | 119 | #5895 | Peter Clarke | P. Clarke | DNA |
| 8.5.1966 | 500 mile Brands Hatch | 11 | #5897a | Salmon / Hobbs | D. Piper | 4th |
| 8.5.1966 | 500 mile Brands Hatch | 16 | #5895 | Konig / Clarke | P. Clarke | DNA |
| 8.5.1966 | Targa Florio | 164 | | Antonio Nicodemi | | DNA |
| 8.5.1966 | Targa Florio | 166 | #6173 | Luigi Taramazzo | Scuderia Sant Ambroeus | DNA |
| 8.5.1966 | Targa Florio | 170 | #5845 | Swanson / Ennis | Squadra Bardahl | DNF |
| 8.5.1966 | Targa Florio | 174 | #6051 | Hawkins / Epstein | Epstein Enterprises Ltd. | 30th |
| 8.5.1966 | Targa Florio | 180 | #5903 | Ravetto / Starrabba | Scuderia Pegaso | 16th |
| 8.5.1966 | Targa Florio | 232 | #5891 | Nicodemi / Lessona | Scuderia Sant Ambroeus | 17th |
| 14.5.1966 | Silverstone International | 7 | #6051? | Paul Hawkins | Epstein Enterprises | DNS |
| 14.5.1966 | Silverstone International | 8 | #5895 | Peter Clarke | P. Clarke | 11th |
| 14.5.1966 | Silverstone International | 9 | | Vic Wilson | Team Chamaco Collect | DNA |
| 14.5.1966 | Silverstone International | 10 | | Mike Parkes | David Piper (Auto Racing) | 10th |
| 22.5.1966 | 1000 km Spa | 49 | #6051 | Hawkins / Epstein | Epstein Enterprises Ltd. | 7th |
| 22.5.1966 | 1000 km Spa | 50 | #5895 | Konig / Clarke | Peter Clarke | DNF |
| 22.5.1966 | 1000 km Spa | 51 | #6023 | Noblet / "Eldé" | Ecurie Francorchamps | DNS |
| 22.5.1966 | 1000 km Spa | 52 | #5843 | Gosselin / de Keyn | Ecurie Francorchamps | 8th |
| 28.5.1966 | AMOC Silverstone [S+1.6] | 97 | #6105 | Ron Fry | R. Fry | DNA |
| 29.5.1966 | Grovewood Trophy Mallory Park | 16 | #5897a | David Piper | Ecurie Vitesse | 3rd |
| 29.5.1966 | Grovewood Trophy Mallory Park | 112 | #6105 | Ron Fry | R. Fry | raced |
| 29.5.1966 | Labatt 50 Mont-Tremblant | 411 | #6047 | Dave Greenblatt | United Auto | DNF |
| 4.6.1966 | Player's 200 Mosport | 411 | #6047 | Dave Greenblatt | David Greenblatt | DNA |
| 5.6.1966 | 1000 km Nürburgring | 3 | #5895 | Clarke / Konig | Peter Clarke | DNF |
| 5.6.1966 | 1000 km Nürburgring | 4 | #6119 | de Siebenthal / Heredia de Bandeira | Antonio Peixinho | DNF |
| 5.6.1966 | 1000 km Nürburgring | 8 | #8165 | Mairesse / Müller | Scuderia Filipinetti | 9th |
| 5.6.1966 | 1000 km Nürburgring | 51 | #6051 | Hawkins / Epstein | Epstein Enterprises | DNA |
| 5.6.1966 | 1000 km Nürburgring | 54 | #5897a | Salmon / Hobbs | David R. Piper | DNA |
| 5.6.1966 | 1000 km Nürburgring | 55 | #5845 | Swanson / Ennis | Arthur Swanson | DNS |
| 18.6.1966 | BARC Silverstone [Special GT+1.6/GT1.15] | 167 | #6105 | Ron Fry | R. Fry | DNA |
| 19.6.1966 | Hockenheim [S+1.6/R+1.1] | 18 | | Heini Walter | Ecurie Basilisk | 2nd |
| 19.6.1966 | 24 h Le Mans | 28 | #6023 | Gosselin / de Keyn | Equipe Nationale Belge | DNF |
| 19.6.1966 | 24 h Le Mans | 43 | #5845 | Swanson / Ennis | Arthur W. Swanson | DNA |
| 19.6.1966 | 24 h Le Mans | 47 | #6051 | Hawkins / Epstein | Epstein Enterprises Ltd. | DNA |
| 19.6.1966 | 24 h Le Mans | 48 | | | North American Racing Team | DNA |
| 26.6.1966 | Trophée d'Auvergne | 89 | #5897a | Richard Attwood | David Piper | 2nd |
| 2.7.1966 | BARC Crystal Palace [Special GT/Marque] | 63 | #5895 | Peter Clarke | P. Clarke | 5th |
| 2.7.1966 | BARC Crystal Palace [Special GT/Marque] | 64 | #6053 | George Drummond | Drummond Racing Organisation | 4th |
| 3.7.1966 | Montes Claros | 22 | #6119 GT | António Peixinho | | DNF |
| 9.7.1966 | Martini Trophy Silverstone | 7 | #6053 | George Drummond | Drummond Racing Org. | DNA |
| 9.7.1966 | Martini Trophy Silverstone | 8 | #5897a | David Piper | David Piper | 5th |
| 9.7.1966 | Martini Trophy Silverstone | 9 | #5895 | Peter Clarke | Peter Clarke | DNA |
| 9.7.1966 | Martini Trophy Silverstone | 29 | | Peter Revson | Kay Racing Ltd. | 10th |
| 9.7.1966 | Vila Real | 55 | #6119 GT | António Peixinho | Pierre de Siebenthal | 2nd |
| 10.7.1966 | Pepsi-Cola Mont-Tremblant | 41 | #6047 | Dave Greenblatt | United | 7th |
| 16.7.1966 | Dunboyne Trophy | 8 | #5895 | Peter Clarke | | 4th |
| 16.7.1966 | GP Brands Hatch | 40 | #5907 | David Hobbs | Bernard White Racing | DNF |
| 16.7.1966 | GP Brands Hatch | 41 | #5897a | David Piper | David R. Piper | 10th |
| 17.7.1966 | DARM Norisring [SP] | 3 | | Heini Walter | Heini Walter | ?th |
| 17.7.1966 | GP Mugello | 152 | | Roberto Benelli | | DNA |
| 17.7.1966 | GP Mugello | 157 | #5845 | Swanson / Ennis | | DNA |
| 17.7.1966 | GP Mugello | 159 | | Casoni / Vaccarella | | DNA |
| 17.7.1966 | GP Mugello | 195 | #5891 | Nicodemi / Facetti | | 18th |
| 17.7.1966 | GP Mugello | | #6053 | George Drummond | | DNA |
| 17.7.1966 | GP Mugello | | | Antonio Nicodemi | | DNA |
| 23.7.1966 | Phoenix Park [Handicap] | | #5895 or 6053 | Jackie Epstein | | 3rd |
| 24.7.1966 | Circuito de Cascais | 40 | #6119 GT | António Peixinho | | 1st |
| 6.8.1966 | Anerley Trophy Crystal Palace | | #8165 | David Piper | David Piper | 1st |
| 7.8.1966 | Coppa Citta di Enna | 58 | | Bartolomeo Donato | | DNF |
| 14.8.1966 | Wills Trophy Croft | 54 | #5897a | Jeff Edmonds | D. Piper | DNF |
| 14.8.1966 | Benefactor Cup Croft | 54 | #5897a | Jeff Edmonds | D. Piper | 4th |
| 14.8.1966 | Wills Trophy Croft | 55 | #6053 | George Drummond | Drummond Racing Org. | DNA |
| 14.8.1966 | Benefactor Cup Croft | 56 | #5895 | Peter Clarke | P. Clarke | 5th |
| 14.8.1966 | Wills Trophy Croft | 56 | #5895 | Peter Clarke | P. Clarke | 10th |
| 14.8.1966 | Benefactor Cup Croft | 57 | #5907 | David Hobbs | Bernard White Racing | 2nd |
| 14.8.1966 | Wills Trophy Croft | 57 | #5907 | David Hobbs | Bernard White Racing | 5th |
| 20.8.1966 | H&DLLC Castle Combe [Sports] | 9 | #6105 | Ron Fry | Ron Fry | 2nd |
| 20.8.1966 | H&DLLC Castle Combe [Sports] | 10 | #5895 | Peter Clarke | Peter Clarke | 4th |
| 20.8.1966 | H&DLLC Castle Combe [Formula Libre] | 10 | #5895 | Peter Clarke | Peter Clarke | DNA |
| 21.8.1966 | 12 h Surfers Paradise | 3 | #6321 | Stewart / Buchanan | Scuderia Veloce | 1st |
| 21.8.1966 | 12 h Surfers Paradise | 4 | #6051 | Epstein / Hawkins | Epstein Enterprises Ltd. | 5th |
| 28.8.1966 | Vila do Conde | 34 | #6119 GT | António Peixinho | | 1st |
| 28.8.1966 | Hill Climb Sierre Montagna | 197 | #5905 | Hans Illert | Squadra Tartaruga | DNA |
| 29.8.1966 | Eagle Trophy Brands Hatch | 116 | #6053 | George Drummond | Drummond Racing Organisation | DNA |