Max Verstappen’s pursuit of a fifth straight Formula 1 world title shows no signs of slowing, as Red Bull extends the development of its RB21 with another batch of aerodynamic upgrades at this weekend’s Mexico City Grand Prix.
The Dutchman sits 40 points adrift of McLaren’s Oscar Piastri, having reignited his championship hopes with three wins from the past four races.
Determined to keep the momentum going, Red Bull has introduced a new floor design and cooling revisions aimed at extracting every ounce of performance from its car at the high altitude Autodromo Hermanos Rodriguez.
The centrepiece of Red Bull’s latest upgrade package is an evolved floor design, first seen in prototype form at Monza.
The new version features a reprofiled upper surface rearwards of the outer floor, generating additional aerodynamic load and improving the car’s overall balance.
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Engineers have also reworked the edge wing to better interact with the updated floor, while tweaks to the sidepod-to-floor interface help enhance cooling efficiency.
These refinements are expected to improve airflow consistency—particularly valuable in Mexico’s thin air, where cars often struggle to generate downforce.
Cooling and Brake Upgrades for the Thin Air
At 2,200 metres above sea level, Mexico City’s cirucit is notorious for its cooling challenges. To combat this, Red Bull has revised the exit area of its engine cover to provide an optional, higher-flow configuration if temperatures spike.
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The team has also introduced larger front brake ducts to cope with the heavy braking zones and reduced air density. It remains unclear whether Yuki Tsunoda will receive the full upgrade package, as Red Bull often prioritises Verstappen when debuting new components.
Other teams - namely Ferrari, Alpine, Williams, Racing Bulls, and Sauber – have brought larger cooling apertures to tackle Mexico’s unique demands. But once again, all eyes are on Red Bull’s relentless charge to close the gap to McLaren’s championship leading contenders.
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