With great success in the 1924, 1925 and 1926 editions of the 24 Hours of Le Mans with the B3-6 Sport, Lorraine-Dietrich became a premier marque in the period.
Technical director Marius Barbarou prepared the six-cylinder engine for Lorraine-Dietrich which utilized overhead valves and hemispherical combustion chambers.
Along with a strong chassis and ample front brakes the B3-6 was a rival to the Bentley 3.0-liter in period.