Mercedes ' engine supplier partnership with Williams Grand Prix Engineering will continue until 2025 , despite the poor performance in the 2014-2017 seasons .
Despite the lack of performance of the team in relation to 2014-2017 seasons , it has been confirmed that Williams have extended the engine supplier partnership with Mercedes until 2025.On 19 September 2019 , Williams announced that Kubica had decided to leave the team at the end of the 2019 season .
Williams Grand Prix Engineering