Powered by an 80hp petrol engine, the Levavasseur machine would have had a crew of three, storage for ammunition, and a cross-country ability.The project was submitted to the French Technical Artillery Committee (Comité Général d'Artillerie), and after two years of study was presented to the Army Minister by the General President of the Committee.

The general described the project in letter No.135, dated 1 February 1905: The objective of the machine is to create an automobile artillery piece, capable of going over the rough terrain only accessible to horse carriages, and offering to the personnel and the engine parts a complete protection from indirect or small arms fire.The locomotive mechanism is then described as a type of continuous track, supporting an armoured box with a weapon:[7] The all-terrain mobility necessary to this machine is achieved by a contraption equivalent to a wheel of very large diameter.

A letter dated 13 August 1908 explained that a tractor on continuous tracks was now available from a British company, Richard Hornsby & Sons.

However, Commandant Léonce Ferrus, who wrote the rejection report, participated in the Schneider tank experiments on 10 September 1915,[14] and in 1916 became involved with the development of the Saint-Chamond tank, which bore what Gougaud describes as "disturbing similarities" to the Levavasseur project,[15] such as layout, armament (Canon de 75), power plant (80 hp engine) and general silhouette.

[16] Levavasseur became a lieutenant colonel of artillery, and retired simply expressing his regret that his views had not been taken into consideration earlier, before the advent of World War I.