McLaren's Crinkled Rear Wing Leads Dutch GP Upgrade Push

McLaren has introduced a visually striking rear wing upgrade at the Dutch Grand Prix, featuring a rippled endplate designed to push airflow manipulation to new limits. The component headlines the second phase of a development package that also includes revised central bodywork and tweaked rear brake ducts, all aimed at improving rear downforce. Alpine and Aston Martin pioneered similar swage-line endplate concepts back in 2023, but McLaren's latest iteration tests the regulatory boundaries of endplate thickness while needing to withstand extreme aerodynamic loads.

Why it matters:

In a Formula 1 season defined by razor-thin margins, innovations at the rear wing can directly impact the Championship fight. McLaren's aggressive pursuit of better airflow control off the rear tyre and around the wing-tip vortex signals a clear intent to extract every last bit of performance from the MCL40 as rival teams bring their own upgrades.

The details:

• McLaren: The crinkled endplate uses multiple swage lines to better manage the airflow coming off the rear tyre and its effect on the tip vortex. Because regulations strictly limit endplate thickness, the design must be both intricate and structurally robust enough to survive high downforce loads.
• Aston Martin: The team has revised the new front-wing concept introduced in Hungary, reducing the chord of the outermost elements and upgrading the inboard foot. An optional new front-wing flap, alongside revised floor fences and a modified diffuser winglet, widens the car's setup window.
• Ferrari: Maranello has introduced floor upgrades targeting increased downforce across all speed ranges. Updated board braces and revised vanes work in conjunction with a tweaked rear diffuser and altered beam wing to energize flow toward the rear of the car.

What's next:

Zandvoort will serve as the first proving ground for these upgrades, with each team hoping its late-season development translates into immediate lap-time gains. While McLaren's eye-catching wing has drawn the most attention, the real verdict will come on the stopwatch as the tight battle at the front of the field intensifies.