Named the JL 12 and equipped with a flex-fuel four cylinder engine, the vehicle did not impress the "Commission des plans de modernisation de l’automobile" which decided in 1946 to merge Somua with Willème and Panhard to form a new company, the Générale française de l'automobile (GFA).
Other references include an unidentified painting resembling Gustav Klimt's The Kiss (1907–1908) and a "Scanning Machine" designed by Frenchman François Willème in 1860.