The Lem (Laboratorio Elettrico Mobile) was introduced at the 1974 Geneva Auto Show. Designed by an Italian journalist, Gianni Rogliatti, the Lem seated two people, had two large gull-wing doors and was intended for use in urban cities. A monocoque in aluminum sheets glued and riveted, a chopper controls the engine, 48 volt lead batteries. With an ample glass area and a striking yellow (later orange) paint finish, the Lem had partially-movable windows, with the rest of the glass fixed.
Source: "Dream, cars of the future since 1950" exposition, Turin, 2008; Concept Car Central
Images: Concept Car Central; Damiano Garro