 the isetta is an italian-designed microcar built under license in a number of different countries, including spain, belgium, france, brazil, germany, and the united kingdom. because of its egg shape and bubble-like windows, it became known as a bubble car, a name later given to other similar vehicles. the bmw isetta was in 1955 the world's first mass-production to achieve a fuel consumption of .in this context, 3-litre refers not to engine size but to the fact that its low-friction 1-cylinder engine and low weight gave it a fuel efficiency of (manufacturer information). it was the top-selling single-cylinder car in the world, with 161,728 units sold."isetta: ein auto bewegt die welt"(authors = andy schwietzer & manfred seehusen) __toc__  ==iso isetta (italy)==  the car originated with the italian fi
BMW_vehicle_series Cab_over_vehicles Iso_vehicles Microcars Rear-wheel-drive_vehicles Rear_mid-engine,_rear-wheel-drive_vehicles Three-wheeled_motor_vehicles Vehicles_introduced_in_1953