Guglielmo Bellasi (9 September 1935-2 June 2025) was the founder and the designer of Bellasi.
Born in Italy to Swiss parents, when he came of age he decided to opt for Swiss citizenship to avoid compulsory military service, which was in force in Italy at the time.
In 1956, he began participating in motorcycle races, then, in 1960, he made his debut as a driver in Formula Junior, then moved on to Italian Formula Three and finally to Formula Two, always with self-prepared cars.
In 1966, he founded Bellasi with the task of preparing cars for Italian Formula Three and manufacturing components for racing cars.
In 1970, driver Silvio Moser commissioned Guglielmo Bellasi to design and build a single-seater for the Silvio Moser Racing Team to compete in Formula One: thus the Bellasi F1 70 was born, which made its debut at the Dutch Grand Prix and raced until the Italian Grand Prix, skipping the British Grand Prix, then returning just once more, still driven by Silvio Moser for Jolly Club of Switzerland, at the 1971 Italian Grand Prix.
Starting in 1970, Guglielmo Bellasi steered the company toward the production of aluminum box chassis and related aerodynamic appendages for cars competing in preparatory formulas, then, in 1980, he specialized his company in the design and construction of models, molds, and parts in composite materials, serving various sectors including motorsport, automotive, and industrial applications.
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