When Sauber announced its rebrand to become Alfa Romeo Racing for the 2019 season, the Italian marque became a Formula 1 constructor for the third time in the championship's history.
Alfa's first term ended after two years, with two world titles. After a hiatus of 28 years - albeit punctuated by short spells as an engine supplier, most notably with Brabham in the late 1970s - Alfa Romeo was persuaded to re-enter as a full-time constructor. Design duties were handed to Alfa's competition department Autodelta, led by ex-Ferrari designer Carlo Chiti.
Chiti had got permission from Alfa Romeo to get the F1 project together as early as 1977, and began work on the stop-gap 177 chassis, which made sporadic appearances in 1979, powered by Alfa's flat-12 engine.