| 1.5.1966 | SM Skarpnäck [GT2.0] | 1 | | Staffan Wahlström | SVK Västeras | 1st |
| 1.5.1966 | SM Skarpnäck [GT2.0] | 2 | | Erik Berger | Bengtsfors MC | 2nd |
| 1.5.1966 | SM Skarpnäck [GT2.0] | 3 | | Lennart Strandberg | Borlänge MK | 3rd |
| 1.5.1966 | SM Skarpnäck [GT2.0] | 4 | | Anders Josephson | | DNA |
| 1.5.1966 | SM Skarpnäck [GT2.0] | 5 | | Per Brandström | KAK/UV | 4th |
| 1.5.1966 | SM Skarpnäck [SP2.0] | 6 | | Per Brandström | Hyllinge MS | 6th |
| 1.5.1966 | SM Skarpnäck [GT2.0] | 8 | | Jan-Olof Östlund | | 10th |
| 1.5.1966 | SM Skarpnäck [GT2.0] | 10 | | Arno Gyltman | Skaraborgs SVK | DNF |
| 1.5.1966 | SM Skarpnäck [SP2.0] | 11 | | Rolf Örell | Botkyrka MK | 7th |
| 1.5.1966 | SM Skarpnäck [GT2.0] | 12 | | Jan Johnson | SMK Motala | DNF |
| 1.5.1966 | SM Skarpnäck [GT2.0] | 15 | | Ingemar Nilsson | | DNA |
| 1.5.1966 | SM Skarpnäck [GT2.0] | 16 | | Åke Hagstrand | | 9th |
| 1.5.1966 | USRRC Riverside | 99 | | Bill Young | | 13th |
| 1.5.1966 | SCCA National Virginia [AP+BP] | 99 | | Bob Leitzinger | | 3rd |
| 1.5.1966 | SCCA National Virginia [AP+BP] | 147 | | Gene Parsons | | 4th |
| 1.5.1966 | SCCA National Virginia [AP+BP] | 711 | | Pete Claydon | | DNA |
| 1.5.1966 | Snetterton | | | John Hine | | 2nd |
| 3.5.1966 | GP Japan | 18 | | Keizo Yabuki | Keizo Yabuki | DNA |
| 7.5.1966 | 750 MC Silverstone [S+1.4] | 9 | #26/3818 | Brian Sherwood | B. J. Sherwood | 3rd |
| 7.5.1966 | 750 MC Silverstone [S+1.4] | 16 | | Peter Beaver | P. Beaver | DNA |
| 7.5.1966 | BARC Oulton Park [Handicap] | 64 | | Peter Taggart | Peter Taggart | raced |
| 7.5.1966 | BARC Oulton Park [Special GT] | 64 | | Peter Taggart | Peter Taggart | 6th |
| 7.5.1966 | BARC Oulton Park [Handicap] | 65 | | Arthur Moore | A. Moore | DNA |
| 7.5.1966 | BARC Oulton Park [Special GT] | 65 | | Arthur Moore | A. Moore | DNS |
| 7.5.1966 | BARC Oulton Park [Special GT] | 66 | | Arnold Milburn | Arnold Milburn | 4th |
| 8.5.1966 | Velodromloppet [GT2.0] | 1 | | Staffan Wahlström | SVK Västeras | DNF |
| 8.5.1966 | Velodromloppet [GT2.0] | 2 | | Ingemar Nilsson | | DNA |
| 8.5.1966 | Velodromloppet [SP2.0] | 3 | | Rolf Örell | Botkyrka MK | 3rd |
| 8.5.1966 | Velodromloppet [GT2.0] | 4 | | Arno Gyltman | Skaraborgs SVK | 6th |
| 8.5.1966 | Velodromloppet [GT2.0] | 6 | | Jan Johnson | SMK Motala | DNF |
| 8.5.1966 | Velodromloppet [GT2.0] | 7 | | Jan-Olof Östlund | | 8th |
| 8.5.1966 | Velodromloppet [GT2.0] | 10 | | Yngve Johansson | | 9th |
| 8.5.1966 | Velodromloppet [GT2.0] | 11 | | Lennart Strandberg | Borlänge MK | 4th |
| 8.5.1966 | Velodromloppet [GT2.0] | 12 | | Åke Hagstrand | | 10th |
| 8.5.1966 | Velodromloppet [GT2.0] | 13 | | Erik Berger | Bengtsfors MC | 2nd |
| 8.5.1966 | Velodromloppet [GT2.0] | 14 | | Claes Lake | | DNA |
| 8.5.1966 | Velodromloppet [GT2.0] | 15 | | Per Brandström | KAK/UV | 3rd |
| 8.5.1966 | Velodromloppet [GT2.0] | 18 | | Lars Thaung | | DNA |
| 8.5.1966 | Velodromloppet [GT2.0] | 19 | | Ulf Karlsson | | DNA |
| 8.5.1966 | Velodromloppet [GT2.0] | 20 | | Claes Jung | | DNA |
| 8.5.1966 | Velodromloppet [GT2.0] | 21 | | Anders Josephson | | DNA |
| 8.5.1966 | SMRC Ingliston [S/Special GT+1.2] | 24 | | Bill Dryden | J. N. Cuthbert | 3rd |
| 8.5.1966 | SMRC Ingliston [S/Special GT+1.2] | 25 | | Ernest Blackadder | E. Blackadder | 4th |
| 8.5.1966 | 500 mile Brands Hatch | 30 | #26-S2-37 | Peter Mould | Mefco Racing | DNA |
| 8.5.1966 | 500 mile Brands Hatch | 31 | | St. John / Arnold | Radio London Racing | DNF |
| 8.5.1966 | 500 mile Brands Hatch | 32 | | Lepp / Gethin | Sports Motors (Machester) Ltd. | DNF |
| 8.5.1966 | 500 mile Brands Hatch | 33 | | Creasey / Cox | P. Creasley | DNS |
| 8.5.1966 | SMRC Ingliston [S/Special GT+1.2] | 33 | | David Ross | G. Birrell | 9th |
| 8.5.1966 | 500 mile Brands Hatch | 34 | | Ellice / Greene | Uptune (Racing) Ltd. | 5th |
| 8.5.1966 | SMRC Ingliston [S/Special GT+1.2] | 34 | | Geoff Temple | G. Temple | 8th |
| 8.5.1966 | 500 mile Brands Hatch | 35 | | Miles / Hine | C. Barber | DNF |
| 8.5.1966 | SMRC Ingliston [S/Special GT+1.2] | 36 | | Sandy McCracken | J. Nicholson | 2nd |
| 8.5.1966 | 500 mile Brands Hatch | 36 | | Eric Falce | E. P. Falce | DNF |
| 8.5.1966 | USRRC Laguna Seca | 67 | | Bill Young | | DNA |
| 8.5.1966 | Mallory Park [GT] | | | Tony Bilburn | | 2nd |
| 15.5.1966 | SCCA National Cumberland [AP+BP+CP] | 99 | | Bob Leitzinger | Lotus Cars of Pittsburgh | 2nd |
| 15.5.1966 | GP Paris [GT] | | | "Alain Dex" | | 1st |
| 15.5.1966 | Junioren Trophy Zandvoort | | | Ernst Hagemann | | ?th |
| 22.5.1966 | Stockholmsloppet [SP2.0] | 3 | | Rolf Örell | | 6th |
| 22.5.1966 | Stockholmsloppet [SP2.0] | 6 | | Kaj Bornebusch | | 7th |
| 22.5.1966 | 1000 km Spa | 60 | | Eichhorn / Steinemann | Squadra Foitek | DNF |
| 22.5.1966 | USRRC Bridgehampton | 60 | | Bob Colombosian | | 20th |
| 22.5.1966 | 1000 km Spa | 61 | #Elan-Lindgren# | Svensson / Lindgren | | DNA |
| 22.5.1966 | 1000 km Spa | 62 | | Wahlström / Brandström | Elan Sweden | 14th |
| 22.5.1966 | SM Monza | | #26-R-22 | Karl Foitek | | 2nd |
| 22.5.1966 | SM Monza | | | Hans Tschiemer | | 6th |
| 22.5.1966 | 1000 km Spa | | | "Baki" / Peter | OASC | DNA |
| 28.5.1966 | AMOC Silverstone [S1.6] | 21 | | Peter Beaver | P. D. Beaver | DNA |
| 28.5.1966 | AMOC Silverstone [S1.6] | 22 | #26/3818 | Brian Sherwood | B. J. Sherwood | DNA |
| 28.5.1966 | MCMRC Oulton Park [GT] | 22 | #26-S2-34 | John Miles | Race Proved by Willment | 1st |
| 28.5.1966 | MCMRC Oulton Park [GT] | 23 | | Bob Smith | Bob Smith | 5th |
| 28.5.1966 | MCMRC Oulton Park [GT] | 24 | | Arnold Milburn | A. Milburn | DNA |
| 28.5.1966 | MCMRC Oulton Park [GT] | 26 | | Glyn Jones | A. Milburn | DNA |
| 28.5.1966 | MCMRC Oulton Park [GT] | 27 | | Peter Creasey | Peter Creasley | 4th |
| 28.5.1966 | MCMRC Oulton Park [Sports] | 28 | | Arthur Moore | A. G. Moore | DNA |
| 28.5.1966 | MCMRC Oulton Park [GT] | 28 | | Arthur Moore | A. G. Moore | DNA |
| 28.5.1966 | AMOC Silverstone [S1.6] | 49 | | Alan Harvey | A. Harvey | DNA |
| 29.5.1966 | Labatt 50 Mont-Tremblant | 42 | | Max Nerriere | Max Nerriere | DNF |
| 29.5.1966 | Grovewood Trophy Mallory Park [S2.0] | 62 | #26-S2-34 | John Miles | "Race Proved by Willment" | 1st |
| 29.5.1966 | Grovewood Trophy Mallory Park [S2.0] | 63 | | John Lepp | Sports Motors (Manchester) Ltd. | 3rd |
| 29.5.1966 | Grovewood Trophy Mallory Park [S2.0] | 64 | | Bill Dryden | J. N. Cuthbert | 2nd |
| 29.5.1966 | Grovewood Trophy Mallory Park [S2.0] | 65 | | Julian Sutton | A. G. P. Ramsay | raced |
| 29.5.1966 | Grovewood Trophy Mallory Park [S2.0] | 66 | | Bob Ellice | Uptune (Racing) Ltd. | 5th |
| 29.5.1966 | Grovewood Trophy Mallory Park [S2.0] | 67 | | Eric Falce | E. P. Falce | 4th |
| 29.5.1966 | Grovewood Trophy Mallory Park [S2.0] | 68 | | Don Marriott | D. Marriott | DNA |
| 29.5.1966 | Grovewood Trophy Mallory Park [S2.0] | 69 | | Peter Pollard | P. M. Pollard | raced |
| 29.5.1966 | Grovewood Trophy Mallory Park [S2.0] | 70 | | Arthur Moore | A. G. Moore | DNA |
| 29.5.1966 | Grovewood Trophy Mallory Park [S2.0] | 71 | #26-S2-37 | Peter Mould | Mefco Racing | raced |
| 29.5.1966 | DARM GT Hockenheim | 74 | | Jim Baldwin | | ?th |
| 29.5.1966 | DARM GT Hockenheim | 77 | | Klaus Scholz | | ?th |
| 29.5.1966 | DARM GT Hockenheim | 78 | | Friedhelm Theissen | | ?th |
| 30.5.1966 | NSCC Silverstone [Special GT] | 126 | #26/3818 | Brian Sherwood | B. J. Sherwood | raced |
| 30.5.1966 | Whitsun Goodwood [Sports/GT] | 138 | | Don Marriott | D. Marriott | DNA |
| 30.5.1966 | Whitsun Goodwood [Sports/GT] | 139 | | Peter Pollard | P. M. Pollard | DNA |
| 30.5.1966 | Whitsun Goodwood [Sports/GT] | 140 | | Eric Falce | E. Falce | DNA |
| 30.5.1966 | Whitsun Goodwood [Sports/GT] | 141 | #26-S2-34 | John Miles | Race Proved by Willment | DNA |
| 30.5.1966 | Whitsun Goodwood [Sports/GT] | 142 | | John Harris | M. Gartlan | DNA |
| 30.5.1966 | Whitsun Goodwood [Sports/GT] | 143 | | John Hine | C. Barber | DNA |
| 30.5.1966 | Whitsun Goodwood [Sports/GT] | 144 | | Keith Burnand | H. K. Burnand | DNA |
| 30.5.1966 | National Zandvoort [GT] | | | Henk van Zalinge | | ?th |