Josef Karrer

Josef Karrer

Ignazio Consiglio

Sergio Rusca

Guido Avondet

Ciro Basadonna

Edouard Roux

Roberto Serboli

Hans Kessler

Marko (Edgard Markiewicz)

Grand Prix de Genève – 1931

Meyrin

Bugatti Rabag T13

Bugatti Type 30

Hans Theisen

August Frings

Friedrich Dilthey

Fritz Kortylewski

Heinz Risse

Willi Seibel

Mathilde Schulz

Rudolf Städtgen

H. Lauenstein

Eugen Winter

Manfred von Brauchitsch

ADAC Eifelrennen – 1931

Georges Irat 17 cv

Bugatti Type 43A

Rally ABC

Constant Knepper

Robert Goemans

Georges Puissant

Frederick Théllusson

Grand Prix des Frontières – 1931

Alfa Romeo Tipo A

Alfa Romeo 8C-2300 Monza

Giuseppe Aldo Bianchi

Giovanni Lurani

Francesco Pirola

Attilio Marinoni

Gildo Strazza

Antonio Maino

Henri Frètet

Gran Premio d’Italia – 1931

Umberto Capello

Jean Pao

Emmanuel Galba

Grand Prix de Casablanca – 1931

SCAP – Engine

Ruby – Engine

Morano

Soriano-Pedroso

Senechal

Louis Abit

Diego Munoz