In 1894, the factory founded by Emile Delahaye built its first automobile. In 1935, after the purchase of Delage, Delahaye launched the 135 on the market. This car, and to a lesser extent its post-war successor, the 235, was to enjoy 15 years of sporting and commercial success. Some of the most exciting bodies of the 1930s and 1940s were built on the Type 135 chassis, and today these cars are sought-after collectors' vehicles and welcome guests at the Concours d'Elegance around the world. This report describes the history of the Delahaye 135 and shows a series of vehicles in over 120 illustrations, some of them historical, supplemented by eight original prosects and technical data sheets. Unique!