The FA1B, second Osella F1 car, was the further development of 1980’ FA1. Although the design and construction were very much the same as the original FA1, the new “interim” FA1B was both narrower and lighter. In 1981 Osella expanded to a two-car team with the wealthy Italian F2 driver Beppe Gabbiani in the lead car. The second was driven by Argentinian Miguel Ángel Guerra in first four rounds of the season, then Piercarlo Ghinzani and Giorgio Francia took the car for a couple of races, and finally arrival of experienced Jean-Pierre Jarier put some stability to the team. Denim remained as main sponsor but Monopolio Tabacchi, the Italian state-owned tobacco company, withdrew their MS funding. Jarier, who joined the team at German GP, was regular starter and more or less regular finisher, while Gabbiani mostly has been stopped by qualifying barrier. The Italian failed to qualify in 12 out of 15 races of the season, and retired in all 3 rounds when he did participate.
Argentinian Guerra, regular Formula 3000 driver in 1979-80, qualified for only one race, the 1981 San Marino Grand Prix, in which his Osella was hit by the March of Eliseo Salazar on the first lap. Guerra’s car hit a wall, and he suffered a broken wrist and ankle. Following his Formula One career, Guerra competed in multiple Argentine and South American championships. In 1984 he was vice-champion of Formula Two Codasur and in 1989 he win the TC 2000 championship.
| Season | Series | Event |
| 1981 | F1WC | San Marino GP |
| Driver | No. | Entrant |
| Miguel Angel Guerra | 31 | Osella Squadra Corse |
| Scale | Manufacturer | Collection |
| 1:43 | Spark | |
| Cat. No. | Quality | Rarity |
| S7253 | 
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