McLaren is dreaming big again. Progress in exploiting the Mercedes power unit, particularly in energy management, has revitalized the MCL40, also powered by a rich package of updates. The changes mainly concern the floor, where the world champions took inspiration from a Ferrari idea. Norris thanks them, immediately gaining confidence with the papaya car, now much more planted at the rear.
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Floor updates
In Miami, the fruits of the many months McLaren spent in the wind tunnel are appreciated. The Woking team was the only one not to have introduced updates since the MCL40 presentation, preferring to take the necessary time to understand the car, observe competitors’ solutions, and implement the first evolutionary step. The most important updates concern the floor, which remains the most important component even on the current generation of cars. Specifically, the team redesigned the five flow conduits in the inlet section, inspired by Ferrari’s geometries. Between the skirts, in fact, horizontal bridge structures have been added, present on the SF-26 since testing. Looking at the outside of the floor, McLaren also redesigned the side bargeboards to keep wheel turbulence away, continuing to prefer vertical fins over horizontal elements.
Moving towards the rear, an evolution of the area in front of the rear wheels is noticeable, where the openings are now shorter, following a decidedly different pattern from before, with the addition of a small vertical element. The goal is to inject more energy under the floor, also trying to mitigate the harmful vortices generated by the wheels. Finally, a little further back, the outer diffuser fin now features the large opening seen on many rival cars, designed to introduce high-energy flows into the extractor, but exposing it more to wheel turbulence.
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Comprehensive updates
The floor changes are accompanied by several interventions on the rest of the car, starting with the aerodynamic elements of the front and rear wheel groups. The bodywork is practically unchanged, except for the new mirror supports, less squared than the previous ones. At the front of the hood, on the sides of the air scoop, two small vortex generators appear, useful to energize the flows towards the rear wing, which has also been renewed. The aerodynamic department coordinated by Peter Prodromou has tweaked the profiles, lengthening the chord of the last element, and redesigned the side endplates, on whose outer surface additional veins appear to divert flows upwards.
Overall, the package brought to Florida represents a significant step forward, highlighted by Lando Norris’s appreciation regarding the increase in rear downforce. However, it might not be over yet. “Between Miami and Canada, we will see a completely new MCL40,” Andrea Stella announced about ten days ago. Further developments could therefore arrive in Montreal, launching a challenge to Mercedes, which is also awaiting updates.
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