McLaren has made a significant step forward with the MCL40. Two main factors explain this progress: first, the team’s ability to update the system software controlling the German power unit; second, the rapid learning curve regarding the setup of the British car, which improved considerably over just a few days. This progress was complemented by outstanding driver performance and Ferrari’s issues, as the SF-26 failed to optimize its performance right from Free Practice 1.
McLaren hits the mark with hybrid management update
McLaren rebounded in Shanghai after an underwhelming result in the opening round of the 2026 Formula 1 season in Australia. Team principal Andrea Stella, originally from Orvieto, had already warned that the team might be slightly behind at the start of 2026 and in the first races in general. Woking has the best power unit on the grid, Mercedes, but in Melbourne they were unable to utilize it effectively.
It’s worth remembering that the power unit is supplied by the German team. However, the package does not include the electric management software. This refers to the mapping for charging and discharging the hybrid system’s battery and the points at which electrical power is cut. Developing this software was McLaren’s responsibility. Mercedes has an inherent advantage here, having developed the software in-house alongside their power unit.
McLaren made some “natural” software changes aimed at optimizing the so-called energy deployment from the MGU-K motor generator. Technical director Neil Houdley confirmed that the team “benefited from significant changes both in deployment and in car setup.” The other major improvement was the car’s setup itself.
The necessary step forward in understanding the MCL40
The team led by Rob Marshall better defined the operating window of the car, which was likely unclear in Australia. Taking almost 50 seconds off the pace in Melbourne, even accounting for improper hybrid energy use, was too large a gap to be definitive or fully representative. It involved understanding stiffness requirements and aerodynamic loads on both axles.
Every Formula 1 car requires a phase of adaptation, and in this important area, the British team admitted they were behind. Data collected during the Australian Grand Prix weekend helped the team make a significant step forward. This, combined with strong driver performance—who managed to extract the maximum from the MCL40 on the final attempt—produced a solid qualifying result.
The key takeaway from McLaren’s progress is simple: having the same power unit as Mercedes, even without their energy management software, is still a huge advantage. Within a week, the team made a significant leap forward and effectively caught up to Ferrari, whose system is different and therefore harder to optimize.
It should be noted, however, that without today’s issues, Lewis Hamilton could have easily aimed for third on the grid. Overall, Ferrari and McLaren appear similar in terms of pure performance, with the SF-26 slightly ahead of the MCL40.
McLaren’s resurgence in Shanghai highlights the rapid development cycle of the 2026 technical era, where software optimization is proving just as critical as aerodynamic updates. By “decoding” the Mercedes power unit’s deployment strategy, Woking has managed to negate the massive time loss they suffered on Melbourne’s straights. While they still lack the bespoke software integration enjoyed by the works Mercedes team, their ability to match Ferrari’s pace within a week suggests that the MCL40 has a high performance ceiling. As we look toward the Sprint Race, the challenge will be maintaining this efficiency over a full stint; if the new software maps can preserve the battery while defending against the Ferrari cars, McLaren may well secure their first podium of the season. The battle for “best of the rest” has officially moved from the wind tunnel to the coding desk.
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