High Quality Content by WIKIPEDIA articles! The Autobianchi Stellina is a small spider (a rear-engined cabrio) from the Italian automaker, Autobianchi (a subsidiary of the Fiat group), built for only two years, 1964 and 1965. It was based on the mechanicals of the chassis Fiat 600D, but had a unique unibody structure, with the outside panels made of fibreglass reinforced plastics, based on a steel frame. It was the first Italian car with a fibreglass body, and one of the first in the world. Powered by Fiat 600D`s rear-mounted, water-cooled 767 cc straight-4 engine, delivering 29 hp (22 kW), the Stellina featured drum brakes on all four wheels.