Inside the 1950s BMW Isetta Brochure
Argentine, Spanish, Belgian, French, Brazilian, German, and British manufacturers all get licenses to produce the Isetta microcar, which was designed in Italy. It was dubbed a bubble automobile, a moniker used by other vehicles with an egg shape and windows that resembled bubbles.
The first mass-produced car to reach a fuel consumption of 3 L/100 km (94 mpg‑imp; 78 mpg‑US) was the BMW Isetta in 1955. It sold 161,728 units, making it the best-selling single-cylinder car ever. The original manufacturer was the Italian company Iso SpA; the name Isetta comes from the diminutive form of Iso, which means “little Iso” in Italian.
h/t: vintag.es