FIA Imposes Harsh Double Disqualification on McLaren at 2025 Las Vegas Grand Prix Over Skid Block Wear, Sparking Debate on Technical Penalty Proportionality
Las Vegas, November 23, 2025 – In a dramatic post-race development that reshaped the 2025 Formula 1 Drivers’ and Constructors’ Championships, the FIA stewards disqualified both McLaren drivers, Lando Norris and Oscar Piastri, from the Las Vegas Grand Prix results. The penalty stemmed from excessive wear on the cars’ skid blocks, also known as planks, which fell below the minimum thickness required by the technical regulations. Norris, who had crossed the line in second place, and Piastri in fourth, lost all points from the event, delivering a significant boost to rival Max Verstappen in the title battle.
Post-race scrutineering revealed that the rear skids on both McLaren MCL39 cars failed to meet Article 3.5.9 of the FIA Formula 1 Technical Regulations, which mandates a minimum thickness of 9mm for the skid block. This rule prevents teams from gaining an aerodynamic advantage by running their cars too low to the ground. Measurements taken with a high-precision Mitutoyo Micrometer showed marginal breaches on both cars. For Norris’s car, the right-hand side front skid measured 8.88mm and the rear 8.93mm. Similar violations were recorded on Piastri’s machine, with readings as low as 8.74mm in one area. These figures represented wear of just 0.07mm to 0.26mm beyond the allowed tolerance amounts equivalent to a fraction of a human hair’s thickness.
McLaren team principal Andrea Stella immediately expressed deep disappointment, apologising to his drivers and describing the outcome as extremely disappointing. The team argued that several factors contributed to the accelerated wear, including heavy porpoising experienced during practice sessions, limited running due to variable weather conditions, and the unique demands of the bumpy Las Vegas street circuit. McLaren emphasised that the breach appeared entirely unintentional, with no evidence of deliberate design or setup intended to circumvent the rules. Despite these submissions, the stewards determined there was no provision in the regulations or in historical precedent for any penalty other than disqualification. The FIA acknowledged the infringement as accidental but upheld a zero-tolerance policy for technical breaches to preserve the integrity of the sport.
The double disqualification cost McLaren a potential 30 points in the constructors’ standings 18 points for Norris’s second place and 12 for Piastri’s fourth. It also dealt a substantial blow to Norris’s championship aspirations, as he had been engaged in a tight battle with Verstappen. Piastri lost valuable points in his own campaign for a higher position in the drivers’ standings. The penalty propelled Verstappen back into serious contention, fundamentally altering the narrative heading into the season’s final races and injecting renewed drama into the title fight.
In the days following the decision, McLaren conducted an internal review while publicly calling for greater proportionality in how the FIA applies penalties for technical infringements. Stella suggested the governing body should consider scaling sanctions according to the degree of the breach and any actual performance advantage gained, rather than enforcing a blanket disqualification. The team stressed that the skid block wear provided no measurable performance gain and described it as a maintenance issue exacerbated by race conditions rather than a strategic violation. McLaren’s CEO Zak Brown later claimed that even FIA officials viewed the penalty as harsh for such a minor infraction, describing it as a very small mistake with huge consequences.
The incident reignited a broader debate within Formula 1 about balancing strict technical enforcement with fairness. Critics argued that zero-tolerance rules, while effective at deterring deliberate cheating, can produce outcomes that feel overly punitive when the infringement is microscopic and unintentional. Supporters, including representatives from rival teams, countered that any relaxation of the rules could open the door to abuse, with teams potentially pushing tolerances aggressively in the knowledge that minor exceedances might receive lighter punishment. Historical precedents of past disqualifications for similar minor plank wear or other technical issues were cited to defend the FIA’s consistent approach.
McLaren revealed findings from their own analysis, confirming the marginal nature of the wear and reiterating that the cars had passed all pre-race checks. The team accepted the stewards’ verdict without launching an appeal but continued to lobby for regulatory evolution ahead of the 2026 season. That year will introduce all-new chassis, power units, and aerodynamic philosophies under the next generation of F1 regulations. FIA officials, for their part, maintained that technical regulations exist to ensure a level playing field, and even small deviations undermine that principle. In their official statements, the stewards emphasised that a breach of the Technical Regulations requires the standard penalty of disqualification, regardless of mitigating circumstances.
The controversy extended beyond the immediate points loss. It highlighted the ongoing challenges teams face with the plank’s role as a wear indicator for ride height. Running the car too low improves aerodynamic performance but accelerates plank erosion, particularly on demanding street circuits like Las Vegas. Analysts noted that McLaren’s strong pace throughout much of 2025 may have indirectly contributed, as their cars were extracting maximum downforce and potentially increasing ground interaction under race conditions.
Rival team principals offered mixed reactions in the paddock. Some expressed private sympathy for McLaren’s position, admitting similar close calls in their own garages, while others insisted that rules must be enforced uniformly without exception. The episode also prompted questions about scrutineering procedures and whether more advanced real-time monitoring technology could help prevent such late-race surprises in the future.
As the 2025 season headed into its concluding rounds, the Las Vegas penalty added fresh intensity to the championship battle. Norris described the loss as frustrating but vowed to fight on with renewed determination. Piastri, the rising star, focused on learning from the experience and delivering stronger results in subsequent races. The McLaren drivers’ resilience was evident as they bounced back with competitive performances later in the season.
Looking ahead, the FIA’s handling of this matter could influence discussions on the 2026 regulations. With major technical overhauls on the Horizon including potential active aerodynamics and sustainable fuels teams are already pushing for clearer guidelines on tolerances and penalties to avoid similar flashpoints. McLaren’s plea for greater proportionality may gain traction if more incidents occur under the new rules.
This case underscores the razor-thin margins that define modern Formula 1, where engineering precision collides with regulatory rigidity. A wear difference of less than 0.3mm cost McLaren dearly in Las Vegas, serving as a stark reminder that in the pinnacle of motorsport, even the smallest details can carry championship-defining consequences. Whether this episode leads to meaningful reform or simply reinforces the status quo remains to be seen. For now, the FIA’s firm stance has left McLaren counting the cost in lost points and momentum, while the entire paddock reflects on the delicate balance between innovation, performance, and compliance.
The penalty not only affected the immediate 2025 standings but also fueled ongoing speculation about how the governing body will approach technical compliance as Formula 1 continues to evolve. Despite the setback, McLaren demonstrated character and competitiveness in the races that followed, keeping their championship hopes alive until the final stages. The Las Vegas disqualification remains one of the most talked-about technical controversies of the season, illustrating the perpetual tension at the heart of the sport.