{"id":885852,"date":"2025-03-07T00:39:48","date_gmt":"2025-03-07T00:39:48","guid":{"rendered":"https:\/\/www.supercars.net\/blog\/?p=885852"},"modified":"2025-03-05T23:57:57","modified_gmt":"2025-03-05T23:57:57","slug":"bugatti-tourbillons-aerodynamics","status":"publish","type":"post","link":"https:\/\/www.supercars.net\/blog\/bugatti-tourbillons-aerodynamics\/","title":{"rendered":"Bugatti Tourbillon’s Aerodynamics"},"content":{"rendered":"

In June 2024, the Bugatti Tourbillon<\/a> first appeared on the global stage, with the highly acclaimed World Premiere at the marque’s home in Molsheim. It is an automobile conceived in every way to push the boundaries of possibility \u2013 a philosophy most spectacularly manifested in its advanced aerodynamic design. In the latest episode of A New Era, Bugatti’s<\/a> world-class engineers and aerodynamicists uncover the art of creating a new hyper-sportscar that masters the forces of air.<\/p>\n

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The first step in crafting one of the world’s most aerodynamically sophisticated road cars started with a simple idea: to create a step-change from the masterpieces that have come before. “The Tourbillon’s predecessor, the Chiron<\/a>\u00b2, was already a low-drag car. But with the Tourbillon, we need to do better than that,” emphasized Paul Burnham, Bugatti’s Chief Vehicle Engineer for the Tourbillon.<\/p>\n

Taking the concept of aerodynamic performance further than the top-speed world record-breaking Chiron, started at a conversely small point in the development process. With the foundation laid for Bugatti’s next hyper car by the marque’s design and engineering teams, months of CFD (Computational Fluid Dynamics) simulations gave them a first idea of the performance to come. For the next step, fifteen months prior to the Tourbillon’s reveal to the world, a collective of some of Bugatti’s finest engineers and aerodynamicists congregated at a state-of-the-art wind-tunnel facility in Italy \u2013 their focus a beautifully constructed half-scale model of the Tourbillon.<\/p>\n

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David \u0160o\u0161tari\u0107, Head of Aerodynamics at Bugatti Rimac<\/h2>\n

“This test represents the first validation of the scale model. This is the first test in which we assess different design volumes and changes to the car. By exchanging parts, we steer the car towards the pursuit of high-speed performance, shifting to handling efficiency and dynamic ability later in the process.”<\/p>\n

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Optimizing drag-coefficient and airflow over the entire car<\/h2>\n

The model at the center of the fastidious testing program is a work of art. The test subject was meticulously crafted from 250 individual, 3D-printed components, fitted with over 100 pressure taps around the model’s body panels, perfectly mirroring the shape of what would evolve to become the Tourbillon.<\/p>\n

Such extensive measures, precisely placed across its exterior form, were critical in the Tourbillon’s aerodynamic development. Mass-flow measurements, static pressure points, air velocities, and a multitude of instruments were carefully analyzed by the aerodynamic engineers to validate their expected performance against simulation results.<\/p>\n

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Lowering the intricate frontal area of the car, integrating a highly advanced rear diffuser, shrinking the glass house of the cockpit’s exterior profile and its aerodynamic impact \u2013 throughout the Tourbillon, Bugatti’s aerodynamicists and engineers fused data-led insight with their industry-leading expertise to enhance the vehicle’s design, creating a powerful evolution from the Chiron.<\/p>\n

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The ultimate objective for the teams’ masterful work was clear throughout the Tourbillon’s development: optimizing drag-coefficient and airflow over the entire car. The scores of hours, days, and months in achieving this mission thus come together to realize the dynamic ability set as the benchmark for performance. The dedication and skill poured in takes the concept of Bugatti hyper sports car capabilities to unprecedented heights \u2013 so much so that the Tourbillon can reach its top speed without its rear wing deployed, yet remaining highly stable.<\/p>\n

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As the intricate process of correlating the simulation models to real test results and part-development gained pace, the size of the Tourbillon itself grew over the next year from model to full-sized prototype \u2013 an evolution that saw the scale of the wind tunnel facilities grow commensurately.<\/p>\n

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Paul Burnham, Bugatti’s Chief Vehicle Engineer for the Tourbillon<\/h2>\n

“We’ve moved on from a scale-model wind tunnel to a full-sized facility, continuing our program of validating the Tourbillon’s aerodynamic performance. Only now are we using a full-scale prototype, which represents a natural step in enhancing calibration of our simulation tools, getting that next degree of accuracy in results.”<\/p>\n

The culmination of an intensive project over years of passion-fueled craft, the first, experimental-prototype phase thus reaffirmed the aerodynamics teams’ carefully curated simulation projections \u2013 setting the stage for creating yet more sophisticated prototypes and, ultimately, the final manifestation of Bugatti’s new era.<\/p>\n

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The Tourbillon is a completely new program; we started really from scratch. We are merging over a century of combustion-engine power expertise with state-of-the-art electric performance. The new hybrid system is a significant change from Bugatti models of the past and makes the cooling system much more complex. But that’s why we have taken the detail to the next level; looking intensively at the airflows through the radiator channels at the front, through to the intakes behind the door within the iconic Bugatti C-line, to ensure that our digital simulations align with the physical model and deliver enough cooling to manage the car’s performance.<\/p>\n

The Tourbillon has been created by teams dedicated to the pursuit of perfection. Everyone has been fully committed to making the Tourbillon a new benchmark for the automotive industry, and it is a true testament to the skill and passion that has fueled its development.”<\/p>\n

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