perche' sara' quella che fornisce meno di tre scuderie , in pratica dal 2021 con mclaren che ripassa a mercedes ,renault motoirizzera' solo Alpine F1
Appendix 9, Regolamento Sportivo Formula Uno, pagina 69/70
[...]provided that if the result contains a fraction then the fraction shall count as a full team (e.g. 11 teams divided by 4 manufacturers = 2.75, each manufacturer must, if called upon to do so by the FIA, supply at least 3 teams).
In doing so, the FIA will first allocate the power unit supply between the Power Unit Manufacturers that are supplying the fewest number of teams, provided that the teams without a supply agreement shall be allocated to the Power Unit Manufacturer(s) that supplies(supply) the lowest number of teams and so on.[...]