| Most frequent drivers: | Francisco Godia-Sales (4), Charles Vögele (2), Juan Jover (2), Joaquim Felipe Nogueira (2), Rodolfo Bay (2), Dorino Serafini (1), Emmanuel de Graffenried (1), Pelayo Martínez Hernández (1), Duque de Alburquerque (1), Antonio Farras (1), Gumesindo Garcia Fernández (1), Xavier Sanglas (1), Robert Manzon (1), Felipe Llopis de la Torre (1), Gerardo Romero Requejo (1), Emilio Palacios Lara (1), José A. Nogueira Pinto (1), "Piare" (1), Luis Teuscher (1), Manuel Pujol (1), Alberico Cacciari (1), "Castelliano" (1), Patrick de Young (1), Pfugbeil (1), José Manuel Simoes (1), Armand Philippe (1), Robert F. Campbell (1), Louis Chiron (1), António Creus (1), Leopoldo P. Villaamil (1) |
| Most frequent makes: | Porsche (12), Osca (8), Stanguellini (7), Pegaso (6), Mercedes-Benz (6), Alfa Romeo (6), Triumph (3), Simca-Gordini (3), Cisitalia (3), Lotus (3), Jaguar (2) |
| Most frequent chassis: | 550-0039 (2), XKD 535 (1), CS01107 (1), 904-090 (1), 904-057 (1), 550-0080 (1), 15-0018GCS (1), 15-0017GCS (1), 14 EM 1184 (1), 14 EM 1038 (1), 1109 [Osca] (1), 1108 [Osca] (1), 1107 [Osca] (1), 1106 [Osca] (1), 1104 [Osca] (1), 1101 [Osca] (1), 11-0001GCS (1), 0572M [750] (1) |