The Bugatti Tourbillon: an automotive icon ‘Pour l’éternité’
In 2004, the revitalized Bugatti brand revolutionized the automotive industry with a hyper sports car boasting 1,001 hp: the Veyron. This was the first-ever road car to exceed 1,000 hp. In 2016, it was succeeded by an even more ambitious engineering marvel that shattered all performance expectations: the Chiron, the world’s first 1,500 hp car. The heart of these vehicles was the world’s most sophisticated automotive engine: an 8.0-liter quad-turbo W16. Now, two decades after Bugatti pioneered the hyper sports car, it is completely reimagining the concept with a brand-new powertrain and platform. Welcome to the Bugatti Tourbillon.
NAME AND PHILOSOPHY
Mate Rimac, the CEO of Bugatti, expressed: The creation of the Bugatti Tourbillon was steered at every juncture by Bugatti’s 115-year history and the philosophies of Ettore Bugatti himself. His principles, ‘if it can be compared, it is no longer Bugatti’ and ‘nothing is too beautiful,’ served as a beacon for me personally, as well as for the design and engineering teams striving to usher in the next thrilling chapter in the Bugatti hyper sports car narrative.
“Legendary models like the Type 57SC Atlantic, celebrated as the world’s most beautiful car, the Type 35, the most triumphant racing car in history, and the Type 41 Royale, one of the most audacious luxury cars ever conceived, constitute our triad of inspiration. Beauty, performance, and luxury were the foundation for the Tourbillon; a car that surpasses all previous in elegance, emotion, and opulence. In essence, it is unparalleled. And just like those past icons, it is not merely for the present or even the future, but Pour l’éternité – for eternity.”
Being the first Bugatti in over two decades not powered by the iconic W16 engine, the tradition of christening core models after legendary Bugatti racing drivers of yesteryears is no longer followed. Instead, the name Tourbillon was selected as the ideal representation of this car’s persona. A French term, and a subtle nod to Bugatti’s French lineage and home in Molsheim, the tourbillon is a horological innovation of a Swiss-born prodigy residing in France in 1801. An utterly unique creation without an equal, it is both intricate and exquisite, aiding in mitigating the effects of gravity on a watch to ensure more accurate time-keeping. Even after more than 200 years, it is still esteemed as the zenith of horology.
This sense of mechanical perpetuity was a fundamental aspect of the Bugatti Tourbillon odyssey. For a car that will grace the concours lawns of this and future centuries, technology can quickly become outdated – particularly large digital screens – so it’s crucial that it incorporates as many timeless elements as possible. The Tourbillon, therefore, employs a host of design and engineering techniques that will stand the test of time, including a wholly analogue instrument cluster handcrafted by Swiss watchmakers and finished with the same meticulous care and attention found in the world’s finest timepieces. Just as these become family treasures passed down through generations, the Tourbillon is conceived as a car for eternity.
DESIGN & AERODYNAMICS
As with every Bugatti of the modern era, the Tourbillon is ‘shaped by speed’. The ability to travel at more than 400 km/h requires every single surface, inlet and ridge to be finely honed to ensure it is not only aerodynamic but also beneficial to the car’s thermodynamics. This is the guiding principle of the Tourbillon, which is then evolved around four Bugatti design elements inspired by history: the horseshoe grille, the Bugatti Line, the central ridge and the dual color split.
Frank Heyl, Bugatti Director of Design, said: “The creations of Ettore and Jean Bugatti are ingenious in their aerodynamics, innovation and enduring beauty. We draw from the Bugatti Type 35, where the whole shape of the car was guided by the shape of the horseshoe grille, tapering back into this streamlined fuselage shape. We find inspiration in the Type 57SC Atlantic – the S stood for Surbaissé, which essentially meant lowered – bringing down the frontal area, lowering the roofline, lowering the driver and creating this wonderful stance and proportion. That’s something that was very important for us, carefully curating the placement of volumes that are both functional but also supporting the extreme proportions of the car. If the car is lower, it looks wider and the size of the wheels are emphasized; it looks like there is tension in the muscles, a posture ready to pounce. Every design decision is geared towards creating a sense of speed even at a standstill.
“Ever since Jean Bugatti began to apply bold dual-tone paintwork to his cars, it has become an important part of Bugatti design DNA, and in the Tourbillon, we evolve it once more in an authentic but modern way. That split happens around our fourth key design element: the Bugatti line, inspired by the color split lines of the Type 41 Royale and reborn as a core design element of both Veyron and Chiron¹. In-keeping with our new proportions, and lowered roofline, the Bugatti line now curves around more sharply, leaning forwards slightly as it winds its way around the roof, imbuing the side profile with a leaping motion.”
Although beautiful in its design and proportions, every surface, intake and vent is carefully honed to balance the enormous aerodynamic forces of a car travelling at over 400 km/h as well as the thermodynamic requirements of a V16 engine, electric motors and battery at full performance.
Using over 20 years of expertise from the Veyron and Chiron, the Tourbillon features a number of patented technologies. As a result, the rear wing even remains submerged during top speed runs, with a perfect equilibrium of forces generated by these new innovations. The wing is utilized to establish higher downforce at slower speeds and as an airbrake for improved stability under deceleration.
Much of this aerodynamic equilibrium is thanks to the new diffuser concept, which starts to climb from just behind the passenger cabin, rising at an ideal angle to keep the Tourbillon in perfect balance. The diffuser is built around a completely new crash concept, which is fully integrated within the structure of the diffuser itself, keeping it both enormously effective but also hidden from sight, enabling the open rear-end design.
At the heart of the Tourbillon’s design ethos is the iconic horseshoe, from which all lines of the car originate, shaping the central fuselage volume. Docked onto that left and right are the flying fenders that allow to stream air underneath the headlights to boost air mass flow into the side intakes. This intricate interplay of airflow is further exemplified by the frontal design, which, while maintaining the dimensions of a sculpted overhang, ingeniously houses an ultra-efficient cooling system that directs air through and out of the front bonnet, augmenting downforce while ingeniously packaging a sizable frunk in between the two radiators.
A set of advanced, electrically actuated dihedral doors not only allow for easy entry into the vehicle but provide a dramatic sense of arrival, able to be opened and closed from the key fob, the door opening button found just underneath the Bugatti Line and on the center console.
INTERIOR
The rapid advancement of digital screens and touchscreens in cars has been such that the technology seems outdated in less than a decade. The Tourbillon, envisioned to grace the lawns of concours d’elegance not just a decade from now but perhaps a century later, embodies a design philosophy that emphasizes timelessness. Drawing inspiration from the world of horology, where century-old wristwatches are still in use and blend seamlessly into modern fashion and lifestyles, the design and engineering teams have created an authentic analogue experience within the cabin.
The epitome of this philosophy is an instrument cluster, designed and crafted with the expertise of Swiss watchmakers. Comprising over 600 parts and made from titanium and gemstones like sapphire and ruby, this skeletonized cluster is built with tolerances ranging from 5 to 50 microns and weighs a mere 700g. This marvel of engineering remains the centerpiece of the driving experience, remaining stationary as the steering wheel rim rotates around it – a configuration known as a fixed hub steering wheel. This innovative design allows Tourbillon drivers to have a clear view of their instruments, regardless of the steering angle, as the spokes extend around the back of the instrument cluster.
The center console, a fusion of crystal glass and aluminum, exposes the intricate workings of the switches and the engine start ‘pull’ lever. The glass underwent 13 stages of development to ensure perfect clarity and robustness, especially in the event of an accident. The aluminum components of the console are anodized and carved from a single metal block, while the knurled aluminum switches are part of a complex mechanism visible beneath the crystal glass – a system entirely developed in-house. The process of starting the all-new naturally aspirated V16 engine and electric powertrain is designed to be a tactile experience, reminiscent of the rituals associated with historic automobiles – a pull to start and a push to stop.
A high-definition digital screen, hidden until needed, displays vehicle data and provides seamless mobile connectivity. A meticulously engineered mechanism deploys the touchscreen from the top of the center console in portrait mode for the reversing camera in two seconds and in full landscape mode in five seconds.
Every decision regarding the interior, like the exterior, is made with the ultimate performance in mind, without any compromise on comfort or practicality. For instance, the seats are fixed to the floor to be as light and low as possible, and the pedal box can be electrically adjusted to ensure a comfortable driving position for all. This innovative solution makes the interior spacious, ideal for long journeys and everyday use. Even the audio system is being designed without traditional speakers and woofers, opting instead for an advanced system that uses exciters on the door panels and throughout the car to turn existing interior panels into speakers. This system is lighter and more efficient than traditional audio setups.
Christophe Piochon, President of Bugatti, stated: “In addition to the remarkable analogue innovations that have contributed to creating such a timeless interior, we have focused on the authenticity of materials and perfection in every component. We informally say that ‘what you see is what you get’, meaning that if a component appears to be made of titanium, carbon fiber, or leather, then it is exactly that – and always of the highest quality. With the Tourbillon, we are elevating this impeccable authenticity and craftsmanship to a new level. Our entirely new Bugatti platform has been designed in every detail to embody the pursuit of engineering excellence. It is clear from any of Ettore Bugatti’s creations that every component, even those unseen, is a work of art, and that was our intention with the Tourbillon as well. It is stunning in every detail, unmistakably Bugatti, and also a masterpiece of packaging and engineering.”
POWERTRAIN AND PERFORMANCE
When the Bugatti W16 engine was unveiled, it was unparalleled in the world of automotive engines. Its four turbos and impressive power output set a new standard for combustion engine technology, and even two decades later, it remains unrivaled. The next masterpiece of internal combustion engineering follows in its footsteps, coupled with the instant torque and adaptability of electric motors.
The next-generation Bugatti hyper sports car is powered by an all-new 8.3-liter naturally aspirated V16 engine, engineered with assistance from Cosworth. This engine is paired with a front e-Axle with two electric motors and one electric motor mounted on the rear axle. In total, the Tourbillon generates 1,800 hp, with 1,000 hp coming from the combustion engine and 800 hp from the electric motors. This is an extraordinary accomplishment, given that the Veyron achieved 1,001 hp from its 8.0-liter engine with four turbochargers, and the new V16 is entirely naturally aspirated. The engine, constructed from lightweight materials, weighs a mere 252 kg.
The electric motors draw power from a 25 kWh oil-cooled 800V battery located in the central tunnel and behind the passengers. With four-wheel drive and full torque-vectoring, it provides ultimate traction and agility. The front e-axle houses two electric motors, with an additional motor on the rear axle, contributing to a total of 800 hp from the electric powertrain system. The electric powertrain, with the electric motors reaching up to 24,000 RPM and a fully integrated dual silicon-carbide inverter, is among the most power-dense in the world. The e-axles deliver over 6 kW per kg of e-axle mass, including inverters, motors, and gearboxes. While power, throttle response, and torque-fill are priorities for the electric powertrain, the relatively large energy content of 25 kWh allows for a very usable all-electric range of more than 60 km / 37 miles.
In the automotive industry, it is typically expected that each new model will be heavier than its predecessor, especially if the new model introduces a hybrid powertrain or increased performance. However, with a new Bugatti, the unexpected should be anticipated. The Tourbillon boasts significantly improved performance, a powerful electric powertrain system, a large battery pack, and yet, it weighs less than the Chiron. This is a testament to the incredible engineering behind the Tourbillon. With its lightweight construction and instantaneous torque from the electric motors, the Bugatti Tourbillon delivers extraordinary performance.
Thanks to the combination of an extremely advanced hybrid powertrain, lightweight engineering, efficient packaging, and advanced aerodynamics, the Tourbillon will significantly reduce emissions compared to its predecessor while still enhancing the driving experience and raising the bar in the automotive industry.
Emilio Scervo, Bugatti CTO, stated: “The Tourbillon had to be incomparable in every respect. Our philosophy has been to elevate every single aspect of the Chiron, seeking elegant and sophisticated engineering solutions and new technologies to deliver a timeless masterpiece. We wanted someone to be able to take any piece of this car, from inside, outside, or under the skin, and believe that it could be placed in an art gallery. The result is a car that is beautiful inside and out, the most powerful Bugatti to date, which simultaneously elevates mechanical fascination and technical beauty to a whole new level.
The powertrain was perhaps the most important decision we had to make, considering every option available to us; reengineering the W16, going fully electric, or creating something entirely new. Ultimately, we chose the most challenging option, creating a powertrain from scratch and pairing it seamlessly with a complex system of e-motors, a new generation eight-speed dual-clutch gearbox, and more, all developed from the ground up specifically for the Tourbillon. But it was important to us that this car retained the pure and raw analogue feel of a naturally aspirated combustion engine, while pairing it with the agility and ability provided by electric motors.
We have already heard what it sounds like when this car reaches its 9,000rpm redline under full throttle, and it is a visceral, awe-inspiring experience that will echo for eternity. With the Tourbillon, we have engineered a car that delivers the best of combustion technology and electrification; free from compromises and built with a timeless dedication to creating a memorable driving experience.”
ENGINEERING
The Tourbillon is built around a completely new chassis and body structure. The structure is composed of a next-generation T800 carbon composite, which includes several weight-saving innovations, such as incorporating the battery as a structural element of the monocoque and a unique crash composite rear diffuser, inspired by high-level motorsport. The front composite air ducts that flow through the front of the car are also integral to the structure, ensuring that every part of the rigid, lightweight structure is optimized. For instance, the front and rear frames feature low-pressure thin-wall aluminum casting and 3D printed structural braces, resulting in a structure that is significantly lighter and stiffer than its predecessor.
The entirely new chassis incorporates a multi-link suspension at the front and rear, forged from aluminum, a departure from the double wishbone steel construction found in the Chiron. By choosing a new organically-designed suspension arm and upright, 3D-printed in aluminum, engineers have achieved a 45% weight reduction in the suspension compared to the Chiron. The rear also features a 3D-printed hollow airfoil arm developed using AI to enhance vehicle dynamics and aerodynamic performance.
The braking system is equally sophisticated, featuring state-of-the-art carboceramic technology. A custom brake-by-wire system is introduced, fully integrated with the movable pedal box, and seamlessly blended through an integrated vehicle non-linear controller developed by Bugatti for the hybrid powertrain. Michelin Pilot Cup Sport 2 tires – 285/35 R20 at the front and 345/30 R21 at the rear – are a custom development for the Tourbillon.
Within the new chassis, the new ultra-compact and lightweight front e-axle with two independent motors, including the dual-inverter, fits within the same packaging space that was available in the Chiron, adding more complexity without requiring additional space. Designers and engineers have also created more storage space and a larger luggage compartment as part of the clean-sheet chassis and body shell design, allowing owners to accommodate a set of bespoke Bugatti Tourbillon luggage.
COMING IN 2026
Mate Rimac, Bugatti CEO, said: “We look back through Bugatti history at the creations of Ettore and Jean and you can immediately see that they refused to compromise. The amount of patents Ettore had to his name was incredible, because he didn’t ever want the simplest solution, he always wanted the best solution, even if it didn’t exist yet. He’d go away and he’d build it, test it and refine it until it was perfect. And then he’d make it beautiful. It is why the cars are so revered today, and it is the driving force behind everything we have done with Tourbillon.
“So yes, it is crazy to build a new V16 engine, to integrate with a new battery pack and electric motors and to have a real Swiss-made watchmaker instrument cluster and 3D-printed suspension parts and a Crystal Glass center console. But it is what Ettore would have done, and it is what makes a Bugatti incomparable and timeless. Without that kind of ambition, you might create a great hyper sports car, but you wouldn’t create an icon Pour l’éternité’.
The Bugatti Tourbillon now enters its testing phase, with prototypes already on the road in anticipation for customer deliveries in 2026. A total of 250 examples will be built, with a starting price of 3.8m EUR net. Hand-assembly will take place at the Bugatti Atelier in Molsheim, following the final W16-powered Bugatti models, Bolide² and W16 Mistral³.