| 23.1.1955 | 1000 km Buenos Aires | 20 | #0440MD | Maglioli / Bucci | Scuderia Ferrari | DNF |
| 27.2.1955 | GP Agadir [S+2.0] | 1 | #0508M | François Picard | François Picard | 4th |
| 27.2.1955 | GP Agadir [S+2.0] | 2 | #0520M | Louis Rosier | Louis Rosier | DNF |
| 27.2.1955 | GP Agadir [S+2.0] | 8 | #0446M | Paul Maret | François Picard | DNF |
| 27.2.1955 | GP Agadir [S+2.0] | 9 | #0504M | "Mike Sparken" | Scuderia Los Amigos | 1st |
| 27.2.1955 | GP Agadir [S+2.0] | 10 | #0500M | Piero Carini | Piero Carini | DNF |
| 27.2.1955 | GP Agadir [S+2.0] | 11 | #0440MD | Jean Lucas | Scuderia Los Amigos | DNF |
| 13.3.1955 | GP Dakar | 20 | #0504M | "Mike Sparken" | "Mike Sparken" | DNF |
| 13.3.1955 | GP Dakar | 21 | #0440MD | Jean Lucas | Scuderia Los Amigos | 7th |
| 13.3.1955 | GP Dakar | 22 | #0508M | François Picard | | DNF |
| 13.3.1955 | GP Dakar | 23 | #0500M | Piero Carini | Piero Carini | 1st |
| 13.3.1955 | 12 h Sebring | 24 | #0502M | McAfee / Wheeler | Wm. H. Doheny | DNF |
| 13.3.1955 | GP Dakar | 27 | #0518M | Jacques Swaters | Equipe Nationale Belge | 5th |
| 13.3.1955 | 12 h Sebring | 28 | #0498M | Taruffi / Schell | Luigi Chinetti | 5th |
| 13.3.1955 | GP Dakar | 37 | #0520M | Louis Rosier | Louis Rosier | 2nd |
| 13.3.1955 | GP Dakar | 38 | #0446M | Paul Maret | | 8th |
| 2.4.1955 | British Empire Trophy | 48 | #0504M | "Mike Sparken" | "Mike Sparken" | DNF |
| 12.4.1955 | Goodwood Easter [S+2.0] | 81 | #0504M | "Mike Sparken" | "Mike Sparken" | 2nd |
| 17.4.1955 | Coupes de Paris | | #0508M | François Picard | | 3rd |
| 17.4.1955 | SCCA National Pebble Beach [BM+CM+DM+EM] | | #0428MD | Sterling Edwards | Sterling Edwards | 2nd |
| 1.5.1955 | SCCA National Bakersfield [S+1.5] | 26 | #0428MD | Sterling Edwards | Sterling Edwards | 1st |
| 1.5.1955 | SCCA National Bakersfield [S+1.5] | 111 | #0492M | John von Neumann | John von Neumann | 2nd |
| 1.5.1955 | Mille Miglia | 714 | #0500M | Piero Carini | | DNF |
| 7.5.1955 | Silverstone International | 18 | #0504M | "Mike Sparken" | "Mike Sparken" | 9th |
| 8.5.1955 | 4 h Forez | 1 | #0508M | François Picard | | 2nd |
| 8.5.1955 | 4 h Forez | 2 | #0520M | Louis Rosier | Louis Rosier | 1st |
| 8.5.1955 | Eläintarhanajo | 9 | #0470MD | Gunnar Carlsson | | DNF |
| 8.5.1955 | GP Spa | 31 | #0440MD | Jean Lucas | Scuderia Los Amigos | DNF |
| 8.5.1955 | GP Spa | 33 | #0552M | Jacques Swaters | Equipe Nationale Belge | 2nd |
| 8.5.1955 | GP Spa | 34 | #0518M | Roger Laurent | Equipe Nationale Belge | 3rd |
| 8.5.1955 | Coppa Lombardia | 338 | #0500M | Piero Carini | | 1st |
| 15.5.1955 | SCCA National Cumberland [CM+DM+EM] | 3 | #0498M | Walt Hansgen | G. Tilp | DNF |
| 15.5.1955 | GP Bari [S+2.0] | 6 | #0552M | Jacques Swaters | Equipe Nationale Belge | 6th |
| 15.5.1955 | GP Bari [S+2.0] | 14 | #0440MD | Emmanuel de Graffenried | | 4th |
| 15.5.1955 | GP Bari [S+2.0] | 16 | #0518M | Johnny Claes | Equipe Nationale Belge | DNF |
| 15.5.1955 | GP Bari [S+2.0] | 18 | #0500M | Piero Carini | | DNF |
| 29.5.1955 | 12 h Hyères | 4 | #0508M | Picard / "Sparken" | François Picard | DNF |
| 29.5.1955 | GP des Frontières | 4 | #0552M | Jacques Swaters | Equipe Nationale Belge | DNA |
| 29.5.1955 | Santa Barbara [S+1.5] | 11 | #0492M | John von Neumann | John von Neumann | DNF |
| 29.5.1955 | Supercortemaggiore | 14 | #0570M | Trintignant / Taruffi | Scuderia Ferrari | DNF |
| 29.5.1955 | Supercortemaggiore | 44 | #0500M | Schell / Carini | | DNF |
| 29.5.1955 | Supercortemaggiore | 52 | #0440MD | Lucas / da Silva Ramos | | DNF |
| 29.5.1955 | Santa Barbara [S+1.5] | 76 | #0502M | Ernie McAfee | Bill Doheny | 1st |
| 30.5.1955 | GP Bougie | | #0520M | Louis Rosier | | 1st |
| 5.6.1955 | Santa Rosa [S+1.5] | 26 | #0428MD | Sterling Edwards | | DNF |
| 5.6.1955 | Santa Rosa [S+1.5] | 107 | #0492M | John von Neumann | John von Neumann | 1st |
| 12.6.1955 | 24 h Le Mans | 12 | #0440MD | "Heldé" / Lucas | Heldé | DNF |
| 12.6.1955 | 24 h Le Mans | 14 | #0504M | "Sparken" / Gregory | Mike Sparken | DNF |
| 18.6.1955 | Preliminary Hansen Dam [Modified 3.0] | 16 | #0428MD | Sterling Edwards | Sterling Edwards | DNA |
| 18.6.1955 | Preliminary Hansen Dam [Modified 3.0] | 76 | #0502M | Ernie McAfee | Wm. Doheny | 1st |
| 19.6.1955 | Hansen Dam [S+1.5] | 16 | #0428MD | Sterling Edwards | Sterling Edwards | DNA |
| 19.6.1955 | GP Shell Imola | 58 | #0570MD | Umberto Maglioli | Scuderia Ferrari | 2nd |
| 19.6.1955 | Hansen Dam [S+1.5] | 76 | #0502M | Ernie McAfee | Wm. Doheny | 1st |
| 26.6.1955 | GP Portugal | 16 | #0520M | Louis Rosier | Louis Rosier | 6th |
| 26.6.1955 | GP Portugal | 19 | #0500M | Piero Carini | Piero Carini | DNF |
| 26.6.1955 | GP Portugal | | #0552M | Jacques Swaters | Ecurie Francorchamps | DNS |
| 4.7.1955 | SCCA National Beverly [BM+CM+DM+EM+CP] | 3 | #0498M | Phil Hill | George Tilp | 1st |
| 4.7.1955 | Preliminary Beverly [BM+CM+DM+EM] | 3 | #0498M | Phil Hill | George Tilp | 1st |
| 10.7.1955 | SCCA National Torrey Pines [S+1.5] | 26 | #0428MD | Sterling Edwards | Sterling Edwards | DNA |
| 10.7.1955 | Coppa d'Oro delle Dolomiti | 138 | #0570MD | Eugenio Castellotti | Scuderia Ferrari | 2nd |
| 10.7.1955 | SCCA National Torrey Pines [S+1.5] | 211 | #0492M | von Neumann / Hill | John Von Neumann | 2nd |
| 24.7.1955 | 10 h Messina | 6 | #0570M | Trintignant / Castellotti | Scuderia Ferrari | 1st |
| 24.7.1955 | Circuito de Lisboa | 16 | #0440MD | Jean Lucas | | DNF |
| 31.7.1955 | SCCA National Seafair [BM+CM+DM+EM] | 3 | #0498M | Phil Hill | George E. Tilp | 2nd |
| 31.7.1955 | Preliminary Seafair [All Classes] | 3 | #0498M | Phil Hill | George E. Tilp | 1st |
| 6.8.1955 | Charterhall International [Invitation Race] | 34 | #0520M | Louis Rosier | Louis Rosier | raced |
| 6.8.1955 | Charterhall International [Sports] | 34 | #0520M | Louis Rosier | Louis Rosier | 2nd |
| 7.8.1955 | GP Sverige [Production/GT+2.0] | 21 | #0552M | Paul Frère | Equipe Nationale Belge | DNS |
| 7.8.1955 | GP Sverige [Production/GT+2.0] | 22 | #0470MD | Gunnar Carlsson | Tore Bjurström | DNF |
| 14.8.1955 | Kanonloppet [Sports] | 2 | #0470MD | Gunnar Carlsson | | 1st |
| 14.8.1955 | Snetterton International [S+1.5] | 102 | #0440MD | Jean Lucas | Ec. Bullfrog | raced |
| 20.8.1955 | 9 h Goodwood | 8 | #0440MD | Schell / Lucas | H. Schell | DNF |
| 21.8.1955 | Buchanan Field [Modified +1.5] | 26 | #0428MD | Sterling Edwards | Sterling Edwards | 1st |
| 27.8.1955 | Oulton Park International | 32 | #0440MD | Jean Lucas | J. Lucas | DNF |
| 27.8.1955 | Oulton Park International | 36 | #0470MD | Gunnar Carlsson | G. Carlsson | DNF |
| 27.8.1955 | Oulton Park International | 44 | #0520M | Louis Rosier | Louis Rosier | DNF |
| 3.9.1955 | Aintree International | 73 | #0440MD | Harry Schell | Scuderia Los Amigos | 4th |
| 3.9.1955 | Preliminary Santa Barbara [Modified +1.5] | 76 | #0502M | Ernie McAfee | Wm. Doheny | 1st |
| 4.9.1955 | Santa Barbara [Modified +1.5] | 2 | #0492M | Phil Hill | John von Neumann | 2nd |
| 4.9.1955 | Stockholmsloppet [S+2.0] | 36 | #0470MD | Gunnar Carlsson | | DNF |
| 4.9.1955 | Santa Barbara [Modified +1.5] | 76 | #0502M | Ernie McAfee | Wm. Doheny | 1st |
| 11.9.1955 | SCCA National Road America [BM+CM+DM] | 3 | #0498M | Phil Hill | George E. Tilp | 1st |
| 18.9.1955 | Tourist Trophy | 8 | #0440MD | Lucas / de Portago | Ecurie Bullfrog | DNS |
| 1.10.1955 | SCCA Regional Salinas [Modified +1.5] | 2 | #0492M | Phil Hill | John von Neumann | DNS |
| 1.10.1955 | SCCA Regional Salinas [Modified +1.5] | 26 | #0428MD | Sterling Edwards | | 3rd |