F1’s regulations limit the amount of flexibility permitted, but teams try to find ways to maximize this to improve performance.

Formula One leaders McLaren will modify the rear wings on their cars after talks with the governing FIA at the Singapore Grand Prix following concern from rival teams.

You can see that in action on this angle from the Azerbaijan Grand Prix. As Oscar Piastri hits high speeds the rear wing flexes, creating a gap that allows for increased airflow through the rear wing, similar to what you see when DRS is activated and the rear wing is opened:

Red Bull, with Ferrari's behind-the-scenes backing, lodged three protests with the FIA about McLaren's flexible rear wing used in Baku. The FIA reportedly suggested to McLaren that a good way forward would be to make some voluntary adjustments to the design for future races, a solution the team accepted.

SINGAPORE (Reuters) -Formula One leaders McLaren will modify the rear wings on their cars after talks with the governing FIA at the Singapore Grand Prix following concern from rival teams. The British-based team went top of the standings in Azerbaijan last weekend but drew scrutiny of how the rear wing functioned at speed,

While the McLaren wing passed the FIA's standard static flexibility checks, Marko pointed out that the regulations also prohibit significant bending during actual racing conditions. "That wing bends in the race," he claimed, "and it gives them an advantage."

McLaren has overtaken Red Bull in the Constructors’ Championship, prompting Red Bull to push the FIA to scrutinize McLaren’s rear wing. This is a

Since the FIA requested McLaren to modify the rear wing to prevent the upper flap from flexing, despite the McLaren MCL38 F1 car passing all FIA checks, fans ha