The story
Claveau's first “4CV” model featured an aerodynamic silhouette and was offered as a sedan/saloon or as a cabriolet roadster. A choice of rear-mounted engines was offered, either an air-cooled four-cylinder unit or a two-cylinder two-stroke unit. In 1930, a model was offered with a front-mounted engine and front-wheel drive.
After the war Claveau began promoting his new “Claveau Déscartes”, with an advanced 2292 cc 85 hp V8 motor, a five speed gear box and front wheel drive. Claveau presented a 1 to 5 scale model of the Descartes in a perspex box at the 1947 Paris Motor Show.
In 1956 a prototype for a “5CV” Claveau model, fitted with a DKW engine, was publicized. It is on display at the Tampa Bay Automobile Museum.https://www.tbauto.org/project/claveau-56-1956-france/
From Wikipedia’s article on Automobiles Claveau, shared under CC BY-SA 4.0.3