Frontenac – Engine

Frontenac – Engine

Shambaugh

Frontenac

Norman Batten

Ora Haibe

Cliff Durant

Charles Shambaugh

Fred Comer

Frank Elliott

Wade Morton

Antoine Mourre

Ira Vail

Harry Thicksten

Lora L. Corum

Bennett Hill

Tom Alley

Ralph DePalma

Harry Hartz

Tommy Milton

Jerry Wonderlich

Dave Lewis

Indianapolis 500 – 1925

Amilcar CS

Guglielmo Lagorio

Coppa della Perugina – 1925

Cesare Fontani

Edoardo Weber

Pietro Minguzzi

Guido Canestrari

Pietro Zaniratti

Gino Minciotti

Renzo Levoni

Massimiliano Strozzi

Circuito del Savio – 1925

Buc AB5

Robert C. Morgan

Filippo Marsengo

Guido Bodini

Paul Guérin

Louis Lefèvre

Grand Prix d’Ouverture – 1925

Steiger 10/50 PS

Simson-Supra S

NSU 5/40

H. Tatenhorst

Karl Sailer

Walter Kaufmann

Hans von Opel

Carl Jörns

Solitude-Rennen – 1925

Tatra 11

Fritz Cockerell

Luigi Lopez

Fernand de Vizcaya