Brazil's Felipe Massa and Finn Valtteri Bottas are to stay with the team for 2016.
Between them, they've led Williams to third in the constructor standings after 11 races of the current campaign.
Brazil's Felipe Massa and Finn Valtteri Bottas are to stay with the team for 2016.
Between them, they've led Williams to third in the constructor standings after 11 races of the current campaign.