Red Bull Racing Formula One team principal Laurent Mekies has confirmed that the development of the RB21 F1 car is "going to heavily slow down" despite ongoing performance challenges. F1 teams could likely switch entirely from the development of the 2025 car to the 2026 challenger, given the limited time period before the onset of a new era of regulations next year.

Cars being fielded in 2026 will be very different from the current ground effect era challengers. The biggest change lies in the power unit, featuring a 50-50 split between electric power and the internal combustion engine that will run on sustainable fuel. In addition, the front and rear wings will sport active aerodynamics, replacing the F1-exclusive Drag Reduction System (DRS).

However, with F1 teams being allowed to w

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