| 22.5.1966 | 1000 km Spa | 48 | E-type | Harper / Merrick | Mike Merrick | 16th |
| 28.5.1966 | MCMRC Oulton Park [GT] | 37 | E-type Lightweight | Bob Vincent | Robert Vincent | 7th |
| 28.5.1966 | MCMRC Oulton Park [GT] | 38 | E-type | Henryk Synowiec | Henryk Synowiec | ?th |
| 28.5.1966 | MCMRC Oulton Park [Sports] | 38 | E-type | Henryk Synowiec | Henryk Synowiec | DNS |
| 28.5.1966 | MCMRC Oulton Park [Sports] | 39 | E-type | Charles Bridges | Red Rose Motors (Chester) Ltd. | 2nd |
| 28.5.1966 | MCMRC Oulton Park [GT] | 39 | E-type | Charles Bridges | Red Rose Motors (Chester) Ltd. | 2nd |
| 28.5.1966 | MCMRC Oulton Park [GT] | 40 | E-type | George Humble | George Humble | 8th |
| 28.5.1966 | MCMRC Oulton Park [Sports] | 40 | E-type | George Humble | George Humble | 5th |
| 28.5.1966 | MCMRC Oulton Park [GT] | 45 | E-type | John Scott-Davies | John Scott-Davies | DNF |
| 28.5.1966 | AMOC Silverstone [S+1.6] | 89 | E-type | John Harper | J. Harper | DNA |
| 28.5.1966 | AMOC Silverstone [S+1.6] | 98 | D-type | M. D. B. McGrath | M. D. B. McGrath | DNA |
| 28.5.1966 | AMOC Silverstone [S+1.6] | 100 | E-type | Rhoddy Harvey-Bailey | R. M. Harvey Bailey | DNA |
| 29.5.1966 | All Japan Suzuka | 32 | E-Type | Ginji Yasuda | | 14th |
| 30.5.1966 | NSCC Silverstone [SR] | 51 | D-type | M. D. B. McGrath | M. D. B. McGrath | DNA |
| 30.5.1966 | NSCC Silverstone [SR] | 52 | E-type | John Scott-Davies | Aintree Circuit Racing Team | 3rd |
| 30.5.1966 | NSCC Silverstone [Formula Libre] | 52 | E-type | Mike Drane | Aintree Circuit Racing Team | DNA |
| 30.5.1966 | NSCC Silverstone [Special GT] | 53 | E-type | John Scott-Davies | Aintree Circuit Racing Team | 1st |
| 30.5.1966 | NSCC Silverstone [Marque] | 105 | XK120 | Anthony Archer | A. B. Archer | 5th |
| 30.5.1966 | NSCC Silverstone [Special GT] | 106 | E-type | Edward Sibley | E. J. Sibley | raced |
| 30.5.1966 | NSCC Silverstone [Marque] | 106 | E-type | Edward Sibley | E. J. Sibley | DNA |
| 30.5.1966 | NSCC Silverstone [Marque] | 107 | E-type | Brian J. Ladd | Kaith Sales | DNA |
| 30.5.1966 | NSCC Silverstone [Special GT] | 108 | E-type | Henryk Synowiec | H. Synowiec | 4th |
| 30.5.1966 | NSCC Silverstone [Marque] | 108 | E-type | Henryk Synowiec | H. Synowiec | 2nd |
| 30.5.1966 | NSCC Silverstone [Special GT] | 131 | E-type Lightweight | Bob Vincent | Robert Vincent | 2nd |
| 4.6.1966 | 8 Clubs Silverstone [Handicap B] | 35 | E-type | D. Gray | D. Gray | DNA |
| 4.6.1966 | BARC Oulton Park [Marque+Special GT] | 51 | E-type | George Humble | George Humble | 4th |
| 4.6.1966 | BARC Oulton Park [Handicap] | 51 | E-type | George Humble | George Humble | 4th |
| 4.6.1966 | BARC Oulton Park [Marque+Special GT] | 52 | E-type | Warren Pearce | W. Pearce | ?th |
| 4.6.1966 | BARC Oulton Park [Handicap] | 53 | E-type | Henryk Synowiec | Henryk Synowiec | DNF |
| 4.6.1966 | BARC Oulton Park [Marque+Special GT] | 53 | E-type | Henryk Synowiec | Henryk Synowiec | 2nd |
| 4.6.1966 | 8 Clubs Silverstone [Race A] | 69 | XK120 | Peter Butt | P. E. Butt | DNA |
| 4.6.1966 | 8 Clubs Silverstone [Handicap B] | 69 | XK120 | Peter Butt | P. E. Butt | DNA |
| 4.6.1966 | 8 Clubs Silverstone [Race B] | 88 | XK120 | D. L. Robertson | D. L. Robertson | DNA |
| 4.6.1966 | 8 Clubs Silverstone [Handicap B] | 88 | XK120 | D. L. Robertson | D. L. Robertson | DNA |
| 5.6.1966 | 1000 km Nürburgring | 96 | E-type | Nelson / Harvey-Bailey | D. Protheroe | DNF |
| 5.6.1966 | 1000 km Nürburgring | 97 | E-type | Harper / Merrick | Michael Merrick | 29th |
| 12.6.1966 | Diamond Trophy Fuji | 12 | E-type | Seiichiro Yokoyama | | 8th |
| 18.6.1966 | BARC Silverstone [Marque] | 75 | E-type | Rhoddy Harvey-Bailey | R. M. Harvey-Bailey | DNA |
| 18.6.1966 | BARC Silverstone [Marque] | 77 | E-type | Warren Pearce | W. Pearce | DNA |
| 18.6.1966 | BARC Silverstone [Handicap] | 78 | E-type | George Humble | G. M. F. Humble | DNA |
| 18.6.1966 | BARC Silverstone [Marque] | 78 | E-type | George Humble | G. M. F. Humble | DNA |
| 18.6.1966 | BARC Silverstone [Marque] | 79 | E-type | Tony Knight | A. H. Knight | DNA |
| 18.6.1966 | BARC Silverstone [Marque] | 81 | E-type | John Quick | J. Playford | DNA |
| 18.6.1966 | BARC Silverstone [Handicap] | 81 | E-type | John Quick | J. Playford | DNA |
| 19.6.1966 | Hockenheim [GT+1.15] | 180 | E-type | Hans Schertenleib | Hans Schertenleib | DNA |
| 19.6.1966 | Hockenheim [GT+1.15] | 181 | E-type | Ernst Brem | Ernst Brem | 6th |
| 25.6.1966 | Watkins Glen [Production] | 88 | XK140 | David Allen Lower | David A. Lower | DNA |
| 2.7.1966 | BRSCC Oulton Park [S/GT] | 31 | E-type | Rhoddy Harvey-Bailey | R. Harvey-Bailey | 4th |
| 2.7.1966 | BRSCC Oulton Park [GT] | 31 | E-type | Rhoddy Harvey-Bailey | R. Harvey-Bailey | DNF |
| 2.7.1966 | BRSCC Oulton Park [Sports] | 31 | E-type | Rhoddy Harvey-Bailey | R. Harvey-Bailey | DNF |
| 2.7.1966 | BRSCC Oulton Park [GT] | 35 | E-type | Henryk Synowiec | Henryk Synowiec | DNF |
| 2.7.1966 | BRSCC Oulton Park [S/GT] | 35 | E-type | Henryk Synowiec | Henryk Synowiec | raced |
| 2.7.1966 | BARC Crystal Palace [Special GT/Marque] | 72 | E-type | Edward Nelson | E. S. Nelson | 8th |
| 2.7.1966 | BARC Crystal Palace [Special GT/Marque] | 73 | E-type | Warren Pearce | | 7th |
| 2.7.1966 | BARC Crystal Palace [Special GT/Marque] | 74 | E-type | John Quick | | 6th |
| 2.7.1966 | BRSCC Oulton Park [GT] | 129 | E-type | Chris Summers | G. Rimmell | 6th |
| 2.7.1966 | BRSCC Oulton Park [GT] | 131 | E-type | Charles Bridges | Charles Bridges | 2nd |
| 3.7.1966 | SCCA National Greenwood [CP+DP+EP] | 3 | | John Abel | | DNA |
| 3.7.1966 | Montes Claros | 45 | E-type | Carlos Santos | | raced |
| 3.7.1966 | SCCA National Greenwood [CP+DP+EP] | 89 | XK140 | Ron McConkey | | 1st |
| 4.7.1966 | SCCA National Galveston [CP+DP+EP] | | XK120 | D. E. Richardson | | ?th |
| 9.7.1966 | Martini Trophy Silverstone | 11 | E-type | George Humble | George Humble | raced |
| 9.7.1966 | Martini Trophy Silverstone | 12 | E-type | Paul Vestey | Paul Vestey | DNA |
| 9.7.1966 | Martini Trophy Silverstone | 38 | E-type | Edward Nelson | Edward Nelson | DNA |
| 9.7.1966 | MCMRC Oulton Park [GT] | 51 | E-type | Chris Summers | G. Rimell | DNS |
| 9.7.1966 | MCMRC Oulton Park [GT] | 52 | E-type | Henryk Synowiec | Henryk Synowiec | 7th |
| 9.7.1966 | MCMRC Oulton Park [GT] | 53 | E-type | Jack Hayden | Jack Hayden | 8th |
| 9.7.1966 | MCMRC Oulton Park [GT] | 55 | E-type | John Bailey | John Bailey | 12th |
| 9.7.1966 | MCMRC Oulton Park [GT] | 56 | E-type | John Scott-Davies | Aintree Circuit Racing Team | DNA |
| 9.7.1966 | MCMRC Oulton Park [GT] | 57 | E-type | Charles Bridges | Charles Bridges | 2nd |
| 9.7.1966 | Vila Real | | E-type | Carlos Santos | | 3rd |
| 10.7.1966 | SCCA Regional Cotati [AP+BP+CP+DP] | 78 | XK120 | Paul Hammer | | DNA |
| 16.7.1966 | Dunboyne Trophy | 26 | E-type | Kenneth McArdle | | DNF |
| 17.7.1966 | DARM Norisring [GT+1.6] | 43 | E-type | Ulf Härtl | Ulf-Dieter Härtl | DNF |
| 17.7.1966 | GP Mugello | 97 | E-type | Edward Nelson | | 30th |
| 17.7.1966 | GP Mugello | 100 | E-type | John Scott-Davies | | DNA |
| 17.7.1966 | GP Mugello | 101 | E-type | Riccardo Sambuco | | DNA |
| 23.7.1966 | BRSCC Oulton Park [GT] | 58 | E-type | Charles Bridges | Red Rose Motors (Chester) Ltd. | 3rd |
| 23.7.1966 | BRSCC Oulton Park [S/GT] | 58 | E-type | Charles Bridges | Red Rose Motors (Chester) Ltd. | DNS |
| 23.7.1966 | BRSCC Oulton Park [S/GT] | 59 | E-type | Rhoddy Harvey-Bailey | R. M. Harvey-Bailey | DNA |
| 23.7.1966 | BRSCC Oulton Park [GT] | 59 | E-type | Rhoddy Harvey-Bailey | R. M. Harvey-Bailey | DNA |
| 23.7.1966 | BRSCC Oulton Park [GT] | 60 | E-type | George Humble | George Humble | 8th |
| 23.7.1966 | BRSCC Oulton Park [S/GT] | 60 | E-type | George Humble | George Humble | 12th |
| 23.7.1966 | BRSCC Oulton Park [GT] | 63 | E-type | Chris Summers | G. Rimmell | 6th |
| 23.7.1966 | BRSCC Oulton Park [S/GT] | 63 | E-type | Chris Summers | G. Rimmell | 6th |
| 24.7.1966 | 24 h Spa | 2 | Mark II 3.8 | Dutoit / Meert | | 5th |
| 24.7.1966 | SCCA National Connellsville [DP] | 15 | XK120 S | Janet Guthrie | | DNA |
| 24.7.1966 | SCCA National Connellsville [DP] | 38 | XK120 | Dick Schulze | | DNA |
| 24.7.1966 | Circuito de Cascais | 39 | E-type | Carlos Santos | | 5th |
| 30.7.1966 | LCCC Oulton Park [GT] | 34 | E-type | Henryk Synowiec | Henryk Synowiec | DNF |
| 30.7.1966 | LCCC Oulton Park [GT] | 154 | E-type | Charles Bridges | Red Rose Motors (Chester) Ltd. | 2nd |
| 7.8.1966 | 3 h Huíla | 34 | E-type | Jack Conninghan Sobral | | 10th |
| 13.8.1966 | 750 MC Oulton Park [GT] | 105 | E-type RB | Chris Summers | R. B. Beck | 2nd |
| 13.8.1966 | 750 MC Oulton Park [GT] | 108 | E-type | Charles Bridges | Red Rose Motors (Chester) Ltd. | 1st |
| 13.8.1966 | 750 MC Oulton Park [Formula Libre] | 108 | E-type Lightweight | Charles Bridges | Red Rose Motors (Chester) Ltd. | 8th |
| 13.8.1966 | 750 MC Oulton Park [Sports] | 146 | E-type | John Bailey | John Bailey | DNF |
| 14.8.1966 | Circuito do Porto | 39 | E-type | Carlos Santos | | 2nd |
| 14.8.1966 | SMRC Ingliston [Marque] | 60 | E-type | Ronnie Morrison | R. F. Morrison | 2nd |
| 20.8.1966 | H&DLLC Castle Combe [Production] | 62 | E-type | Chris Summers | G. Rimell | DNA |
| 20.8.1966 | H&DLLC Castle Combe [Production] | 67 | E-type | John Bailey | John Bailey | DNA |