| 2 | Tagliavia / di Salvo | Scuderia Pegaso | | Alfa Romeo | Giulietta Sprint Zagato | | Alfa Romeo | GT1.3 |
| 4 | Garufi / Capuano | Scuderia Pegaso (I) | | Abarth-Simca | 1300 | Bialbero | Abarth | GT1.3 |
| 6 | Navarro / Pagnon | Automobiles René Bonnet | | René Bonnet | Djet | | Renault | GT1.3 |
| 8 | Panepinto / Parla | Salvatore Panepinto (I) | | Alfa Romeo | Giulietta Sprint Zagato | | Alfa Romeo | GT1.3 |
| 10 | Capra / Galli | Scuderia Sant'Ambroeus | | Alfa Romeo | Giulietta Sprint Zagato | | Alfa Romeo | GT1.3 |
| 12 | Laureati / Ridolfi | Pietro Laureati (I) | | Abarth-Simca | 1300 | Bialbero | Abarth | GT1.3 |
| 14 | Virgilio / Monaco | Scuderia Etna | | Alfa Romeo | Giulietta Sprint Zagato | | Alfa Romeo | GT1.3 |
| 16 | Bonaccorsi / Susinno | Scuderia Etna | | Alfa Romeo | Giulietta Sprint Zagato | | Alfa Romeo | GT1.3 |
| 20 | Rosinski / Rolland | Societé Automobiles Alpine | | Alpine | A110 | | Renault | GT1.3 |
| 22 | Garzone / Petruzzi | Antonio Petruzzi | | Alfa Romeo | Giulietta Sprint Zagato | | Alfa Romeo | GT1.3 |
| 24 | Sabbia / Spampinato | Vito Sabbia | | Alfa Romeo | Giulietta Sprint Veloce | Michelotti | Alfa Romeo | GT1.3 |
| 28 | Mirto Randazzo / Crisafi | Scuderia Pegaso | | Alfa Romeo | Giulietta Sprint Speciale | | Alfa Romeo | GT1.3 |
| 30 | Picciotto / "Bismark" | Giuseppe Picciotto | | Alfa Romeo | Giulietta Sprint Zagato | | Alfa Romeo | GT1.3 |
| 32 | Mantia / "Etabba" | Scuderia Pegaso (I) | | Alfa Romeo | Giulietta Sprint Zagato | | Alfa Romeo | GT1.3 |
| 34 | Montalbano / Calascibetta | Scuderia Etna | | Abarth-Simca | 1300 | Bialbero | Abarth | GT1.3 |
| 36 | Rigano / Merendino | Giovanni Rigano (I) | | Alfa Romeo | Giulietta Sprint Zagato | | Alfa Romeo | GT1.3 |
| 38 | Charrière / Bouharde | Automobiles René Bonnet | | René Bonnet | Djet | | Renault | GT1.3 |
| 40 | Féret / Orsini | Societé Automobiles Alpine | | Alpine | A110 | | Renault | GT1.3 |
| 52 | Rigamonti / Riolo | | | Alfa Romeo | Giulia Sprint | | Alfa Romeo | GT1.6 |
| 54 | Tipa / Lombardo | Scuderia Etna | | Alfa Romeo | Giulia Sprint | | Alfa Romeo | GT1.6 |
| 56 | Nardari / Zarattin | San Marco (I) | | Osca | GT | 1600 | Osca | GT1.6 |
| 58 | Bussinello / Todaro | Scuderia Sant'Ambroeus (I) | | Alfa Romeo | Giulia TZ | | Alfa Romeo | GT1.6 |
| 60 | "Kim" / Thiele | Scuderia Sant'Ambroeus (I) | | Alfa Romeo | Giulia TZ | | Alfa Romeo | GT1.6 |
| 62 | Nicodemi / Lessona | Scuderia Settecolli | | Alfa Romeo | Giulia TZ | | Alfa Romeo | GT1.6 |
| 72 | Müller / Rayers | Scuderia Filipinetti (CH) | | Porsche | 904 | GTS | Porsche | GT2.0 |
| 74 | Klass / Neerpasch / *von Hanstein | Porsche System Engineering (D) | | Porsche | 356 | B 2000 GS Carrera GT | Porsche | GT2.0 |
| 76 | Herrmann / Patria | Abarth & Cie | | Abarth-Simca | 2000 GT | | Simca | GT2.0 |
| 76T | Herrmann / Patria | Abarth & Cie | | Abarth-Simca | 2000 GT | | Simca | GT2.0 |
| 78 | Bulgari / Grana | Scuderia Sant'Ambroeus | | Porsche | 904 | GTS | Porsche | GT2.0 |
| 80 | Conti / Venturi | Luciano Conti | | Abarth-Simca | 2000 GT | | Simca | GT2.0 |
| 82 | Spychiger / Riolo | Abarth & Cie | | Abarth-Simca | 2000 GT | | Simca | GT2.0 |
| 84 | Balzarini / Linge | Porsche System Engineering (D) | | Porsche | 904 | GTS | Porsche | GT2.0 |
| 86 | Pucci / Davis | Porsche System Engineering (D) | | Porsche | 904 | GTS | Porsche | GT2.0 |
| 88 | Radefalk / Duneborn | Hasse Radefalk | | Porsche | 904 | GTS | Porsche | GT2.0 |
| 90 | Rey / Hanrioud | Jacques Rey (CH) | | Porsche | 904 | GTS | Porsche | GT2.0 |
| 92 | "Ben Hur" / "The Tortoise" | "Ben Hur" (I) | | Porsche | 356 | B 2000 GS Carrera Reutter | Porsche | GT2.0 |
| 94 | Vianini / Deserti | Andrea Vianini | | Porsche | 904 | GTS | Porsche | GT2.0 |
| 102 | "Yuri" / Giugno | | | Lancia | Flaminia | Coupé Touring | Lancia | GT2.5 |
| 104 | Santoro / Raimondo | Francesco Santoro | | Lancia | Flaminia | Sport Zagato | Lancia | GT2.5 |
| 106 | Scimone / Randazzo | | | Lancia | Flaminia | Sport Zagato | Lancia | GT2.5 |
| 112 | Norinder / Troberg | Ulf Norinder (S) | Ulf Norinder | Ferrari | 250 GTO | | Ferrari | GT3.0 |
| 114 | Taramazzo / Ferlaino | Scuderia Sant'Ambroeus (I) | | Ferrari | 250 GTO | 64 | Ferrari | GT3.0 |
| 118 | Guichet / Facetti | Scuderia Sant'Ambroeus (I) | | Ferrari | 250 GTO | 64 | Ferrari | GT3.0 |
| 120 | Taormina / Tacci | Baldassare Taormina | | Ferrari | 250 GT | Lusso | Ferrari | GT3.0 |
| 126 | Bourillot / de Bourbon-Parme | Scuderia Filipinetti (CH) | Georges Filipinetti | Ferrari | 250 GTO | | Ferrari | GT3.0 |
| 128 | Nicolosi / Zanardelli | Scuderia San Marco | | Ferrari | 250 GTO | | Ferrari | GT3.0 |
| 132 | Mosca / Fortinbras | Luigi Mosca (I) | Luigi Mosca | Ferrari | 250 GTO | | Ferrari | GT3.0 |
| 142 | Hill / Bondurant | Shelby American Inc. (USA) | | Shelby | Cobra | roadster | Ford | GT+3.0 |
| 144 | | Shelby American Inc. (USA) | | AC | Cobra | | Ford | GT+3.0 |
| 146 | Gurney / Grant | Shelby American Inc. (USA) | | Shelby | Cobra | | Ford | GT+3.0 |
| 148 | Gregory / Ireland | Shelby American Inc. (USA) | | Shelby | Cobra | roadster | Ford | GT+3.0 |
| 150 | Coco / Arena | Shelby American Inc. - Ford Italia (USA) | | Shelby | Cobra | roadster | Ford | GT+3.0 |
| 152 | Tchkotoua / Hitchcock | Tommy Hitchcock (USA) | Tommy Hitchcock | Shelby | Cobra | roadster | Ford | GT+3.0 |
| 162 | Paratore / Semilia | Settecolli | | Maserati | Tipo 60 | Paratore | Maserati | S2.0 |
| 164 | Rotolo / di Liberto | Filippo di Liberto (I) | Domenico Rotolo | Osca | MT4 | 1000 | Osca | S2.0 |
| 168 | Lisitano / Cucinotta | Squadra Peloritana (I) | | Fiat | 8V | Zagato | Fiat | S2.0 |
| 170 | Terra / Toppetti | Leandro Terra (I) | | Ferrari | Dino 196 SP | | Ferrari | S2.0 |
| 174 | Epstein / Wilks | Jackie Epstein (GB) | | Brabham | BT8 | | Climax | S2.0 |
| 176 | Jones / Ratcliffe | Vitafoam Racing Team (GB) | | Morris | Mini Cooper | S | BMC | S2.0 |
| 178 | Boffa / Govoni | Mennato Boffa (I) | Luigi Bellucci | Maserati | Tipo 60 | | Maserati | S2.0 |
| 182 | Trautmann / Cella | HF Squadra Corse Lancia | | Lancia | Flavia | Sport Speciale | Lancia | P2.0 |
| 184 | Crosina / Frescobaldi | HF Squadra Corse Lancia (I) | | Lancia | Flavia | Sport Speciale | Lancia | P2.0 |
| 186 | Barth / Maglioli / *Bonnier | Porsche System Engineering (D) | | Porsche | 904 | /8 | Porsche | P2.0 |
| 188 | Bonnier / Hill / *Maglioli | Porsche System Engineering (D) | | Porsche | 718 WRS | | Porsche | P2.0 |
| 190 | Bianchi / Bianchi | Societé Automobiles Alpine | | Alpine | M63 | B | Renault | P2.0 |
| 192 | Hopkirk / Wisdom | Donald Healey | | Austin-Healey | Sprite | Spider Lightweight | BMC | P2.0 |
| 194 | Siddi / Fondi | Antonino Siddi | | MG | B | | BMC | P2.0 |
| 202 | Zeccoli / Gardi | Scuderia Centro Sud | | ATS | 2500 GT | | | P3.0 |
| 204 | Frescobaldi / Baghetti | Scuderia Centro Sud | | ATS | 2500 GT | | | P3.0 |