The Autobleu 750 MM was preceded by an earlier Riffard design for a car called the Renault-Riffard. Built on the chassis of an existing race car called the Guépard some time between 1950 and 1954, this compact barquette had full-width "tank" style bodywork with the side profile of an airfoil cross-section. The bodywork was designed by Riffard, and fabricated by Heuliez. Power came from a 4CV engine bored out to , and fitted with an Autobleu cylinder head. The car's engine was ahead of the driver, and drove a rear axle in a front-engine, rear-wheel-drive layout.
