Williams has extended its long-term engine partnership with Mercedes until the end of the 2025 Formula 1 season, the team has announced.

The Grove-based outfit has been powered by the German manufacturer since the dawn of the V6 turbo-charged era in 2014, guiding Williams to back-to-back third-placed finishes in ’14 and 2015.

During the six-year relationship, the team has managed to clock 15 podiums, with the last coming courtesy of Lance Stroll’s third place finish in the 2017 Azerbaijan Grand Prix.

Over the past two years Williams’ form has declined, having propped up the constructors’ championship last season for the first time in its 42-year history.

Robert Kubica’s point at the rain-soaked German Grand Prix is the only points finish Williams has registered in 2019. The contract extension is a four-year deal on on top of the original agreement that was set to run out at the end of 2021.

Deputy team principal Claire Williams said: “We have enjoyed a wonderful partnership with Mercedes-Benz over the past six years of what was originally a seven-year agreement, and so we are delighted to be continuing working with them for a further five years from 2021.

“Mercedes-Benz has been one of the sport’s most successful engine suppliers and we believe that they will continue to have an extremely competitive engine package going forwards.

“Over our time with them they have become a real friend of the team, and we look forward to working with Mercedes-AMG HPP in future.”

Mercedes team boss Toto Wolff added: “Williams is one of the iconic brands in Formula One and we at Mercedes are proud to count them as part of our motorsport family.

“They have been through some tough times recently but that has only served to demonstrate their resilience and strength of character as they battle back to where they belong on the grid.

“I am certain that the outlook for independent teams is bright under the financial regulations that will be introduced from 2021 and we are delighted to continue our partnership with Williams into that new era of our sport.”