Mercedes will bring the last update for its Formula One car to the Great Britain GP at Silverstone in 2021 at the end of this month.
With Red Bull, which leads both championships and has won all the last four races, Mercedes is currently facing its toughest challenge to date in the V6 hybrid era.
Max Verstappen is 18 points ahead of Lewis Hamilton at the top of the driver's standings, whereas Red Bull is 40 points ahead of Mercedes in the constructors' standings.
Hamilton said, after losing to Verstappen in Austria last Sunday, that Mercedes “needed an upgrade” to get more power after Red Bull advanced at absolute speed.
Toto Wolff, the head of the Mercedes team, revealed after the race that the development of this year's W12 car has been stopped, but the technical head James Allison later added that the completed update still needs to be added.
As Mercedes shifts its focus and resources to the 2022 design, this will be the first design of the extensively revised technical regulations, so it has decided to terminate the development of the 2021 car.