Red Bull and McLaren were once again at odds in Formula 1, while the FIA observed quietly from the sidelines. The Brazilian Grand Prix at Interlagos saw a thrilling victory for Lando Norris, followed by Kimi Antonelli in second. Max Verstappen climbed to the podium in third after an incredible comeback. The Dutchman had started from the pit lane, taking advantage of the parc fermé rule that allowed the mechanics to adjust the car, including a new setup, fresh tires, and crucially, a new power unit. And it is precisely the power unit decision that has sparked debate.
Red Bull strategy draws McLaren’s ire
Each F1 team is allowed four power units per season, with a fifth unit triggering an automatic grid penalty. For internal combustion engines, the penalty is a drop of 10 positions. Starting seventeenth, Red Bull chose to begin from the pit lane, enabling them to make unrestricted changes to the car and formally homologate Verstappen’s fifth power unit of the season.
It proved a smart move given the context. An ICE engine loses power as mileage increases, with less horsepower and reduced responsiveness. Interlagos demands strong engine performance, so a fresh power unit gave Verstappen a significant advantage. This is the crux of the controversy.
McLaren questions budget cap implications
The Milton Keynes team’s decision to install a new power unit on the four-time world champion’s car raised eyebrows across the paddock. McLaren specifically expressed concerns over whether such an operation could comply with Formula 1’s strict budget cap of €135 million per team.
The choice by Red Bull followed a challenging Saturday, with both Max Verstappen and Yuki Tsunoda eliminated in Q1. The Austrian team opted to swap the engine on Verstappen’s car, forcing him to start from the pit lane. Despite the setback, the Dutchman fought back to finish third, overcoming a slow puncture early in the race to complete a remarkable podium finish.
Stella expresses doubts
McLaren team principal Andrea Stella voiced concerns that performance-driven engine swaps could directly affect the budget cap. “From a performance standpoint, a new engine provides some advantages, because these units don’t degrade significantly with mileage,” said Stella. Previously Fernando Alonso’s race engineer at Ferrari, Stella emphasized that replacing a power unit without technical issues is uncommon due to the cost involved. “Generally, you wouldn’t swap an engine accepting a penalty, because the performance gain rarely compensates for the loss of grid positions,” he explained.
He added, “I don’t know the exact details of the Honda engine, but if the change was made for performance reasons, then the cost should fall within the budget cap.” Yet there is a contradiction: Stella admits there are no significant performance gains, so questioning whether it counts against the budget cap seems inconsistent. Critics have called this reasoning questionable.
Transparency remains essential in F1
Stella also stressed the broader need for clarity in the regulations: “I would like to understand whether this replacement actually impacts the budget cap. We wouldn’t do it, because it would affect our spending limit and have a significant effect on our finances,” he concluded. On the issue of transparency, at least, his point resonates.
It remains to be seen whether the FIA will investigate following Stella’s suggestion or dismiss McLaren’s concerns, as Red Bull has not broken any explicit rules. Regardless, a clarification is likely forthcoming, because, as Stella correctly notes, maximum transparency always benefits the sport.
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