LONDON (Dispatches) - Williams initially joined forces with the Stuttgart manufacturer in 2014, at the start of the hybrid era, with a seven-year deal that took it to the end of the current Concorde Agreement.
The new deal extends five years into the post-2021 era, and as such is a clear show of faith in the future direction of the sport from both parties. Williams will continue to make its own gearbox rather than join Racing Point in taking a supply from Mercedes.
Williams has always enjoyed a good relationship with its current supplier, in part because Mercedes boss Toto Wolff was previously a shareholder in and director of the Grove team.
That was reflected in the way the Brackley outfit was able to conclude a deal to take Valtteri Bottas after Nico Rosberg’s sudden retirement at the end of 2016.
"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,” said deputy team principal Claire Williams.