The L'Œuf électrique, or "The Electric Egg," is a futuristic, three-wheeled concept car built by French designer Paul Arzens in 1942 during the German occupation of Paris. It was conceived as a lightweight, economical vehicle to bypass wartime gasoline rationing. Its distinctive spherical body was constructed from hand-formed aluminum and curved Plexiglas, offering unique visibility. Originally powered by batteries, this early electric prototype weighed 350 kg and could reach a top speed of 70 km/h with a range of 100 km. Arzens used the egg-shaped microcar as his personal vehicle until 1990.