Williams have extended their engine deal with Mercedes, re-signing with the championship-leaders through to the end of 2025.
Williams first took on Mercedes power back in 2014, the year that Formula 1 swapped to 1.6 litre V6 turbocharged hybrid power units.
The team finished third in the 2014 championship, repeating that feat a year later before falling off the pace.
Williams’ troubles, though, have nothing to do with the Mercedes power unit, which remains one of the best and most reliable.
Deputy team boss 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.”
Extending our power unit partnership with Mercedes-Benz until the end of 2025! 🙌
We’ve had some great moments over the past six years and we’re looking forward to many more as we fight our way back up the grid 🤜🤛 pic.twitter.com/KFM8juc23Q
— ROKiT WILLIAMS RACING (@WilliamsRacing) September 13, 2019
Mercedes motorsport 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.”