Mercedes Struggles with New Upgrade Package During Malaysia Practice

Mercedes faced one of their most challenging Fridays of the 2026 season in Malaysia. Despite debuting a significant upgrade package, the Silver Arrows struggled to find a balance, with both George Russell and Kimi Antonelli fading down the order as the day progressed. While the new components provide a noticeable boost in downforce, the team is currently fighting a losing battle against overheating tyres.

Why it matters:

As the season reaches its critical final stages in October, Mercedes' ability to integrate upgrades quickly is paramount. The failure to manage tyre degradation in Malaysia's harsh conditions effectively negates the aerodynamic gains from their new floor and sidepods, leaving them vulnerable to a dominant Red Bull and a fast-improving McLaren.

The Details:

• Upgrade Scope: The new package includes modifications to the floor edge, sidepods, and rear diffuser. Drivers reported positive feedback regarding increased grip in high-speed corners.
• Session Performance: George Russell showed early promise with a P2 finish in FP1 but slipped to P7 in FP2. Kimi Antonelli finished P8, with both drivers suffering from costly track-limit errors on their flying laps.
• The Tyre Crisis: High degradation and overheating have become the primary hurdles. Russell noted that these issues are currently "trumping" the benefits of the extra downforce.
• The Competition: Max Verstappen remained the class of the field across both sessions, while Charles Leclerc topped FP2 and McLaren displayed superior long-run pace.

The Big Picture:

Deputy Team Principal Bradley Lord admitted the competitive gap felt more like the struggles seen in Hungary than the relative strength they showed in Baku. Because the team cannot revert to the previous specifications this weekend, the focus has shifted entirely to setup adjustments to find a window where the car can operate efficiently without destroying the rubber.

What's next:

Mercedes will spend the night trawling through data to resolve the overheating issues before qualifying. While Russell has not ruled out a fight for back-to-back pole positions, the team must first stabilize the car's operating window to challenge the pace of Verstappen and Leclerc.