For 1970 Swiss racer Silvio Moser commissioned Bellasi to design a Grand Prix car for him. This Cosworth-powered device (using some components from the Brabham BT24-3 Moser had raced for the Silvio Moser Racing Team SA) featured a simple riveted aluminium monocoque with tubular sub-frame carrying the radiator and front suspension. The Bellasi was ready for the Dutch Grand Prix in June but failed to qualify there and again in France. The team did not bother to go to Britain because there was no starting money and there was another failure to qualify in Germany before Moser finally made it onto the grid at the 1970 Austrian Grand Prix. The car lasted 13 laps before breaking down and at Monza it was back to non-qualification. The car reappeared for the non-championship Argentine Grand Prix in 1971, entered by the Jolly Club. In September the car was entered again at the 1971 Italian Grand Prix and qualified but retired after only five laps.