Maserati 26R

Maserati 26R

Itala 61 s/c

Rodolfo del Drago

Alberto Panerai

Giovanni Tabacchi

Constanzo Arzilla

Giovanni Serra

Piero Bucci

Reale Premio di Roma – 1931

Mercedes SS

Alfa Romeo 6C-1500 GS

Fiat 509 SM

Alfa Romeo 6C-1500 S

Donnet – Engine

Donnet

Federico Caflisch

Josef Karrer

Ignazio Consiglio

Sergio Rusca

Guido Avondet

André Morel

Roberto Serboli

Etiénne Lepicard

Grand Prix de Genève – 1931

Meyrin

Rabag-Bugatti Type 13

Rabag-Bugatti

Hans Theisen

August Frings

Friedrich Dilthey

Fritz Kortylewski

Mathilde Schulz

Rudolf Städtgen

H. Lauenstein

Eugen Winter

ADAC Eifelrennen – 1931

Bugatti Type 44

Constant Knepper

Robert Vidal

Georges de Marotte

Grand Prix des Frontières – 1931

Alfa Romeo Tipo A

Francesco Pirola

Ferdinando Minoia

Gildo Strazza

Antonio Maino

Henri Frètet

Robert Sénéchal

Gran Premio d’Italia – 1931

André Schlumberger

Umberto Capello

Grimaldi

Grand Prix de Casablanca – 1931

SCAP – Engine