Proposal for a Mathis 666 cabriolet, shown in the 1949 Paris Motorshow brochure. The design was made by Henri Chapron, and the name was "Le Dandy". Unfortunately, the "666" would never become reality, apart from the first prototype (with its kind of "Vutotal" windscreen) and the second one, shown at the same motorshow, just a frame with engine, seats, dashboard and a front grille.