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One and only Bugatti Chiron Profilee is headed to auction

Bugatti has shed light on a never-before-seen variant of the Chiron named Profilee. Designed with production in mind but ultimately canned, the coupe was envisioned as "a less radical interpretation" of the Pur Sport, and the only existing example is headed to auction in 2023. Customer requests shaped this otherwise fruitless evolution of the Chiron: Bugatti explains its clients asked for a toned-down version of the Pur Sport that focuses more on touring than on handling. Designers gave the coupe a new aerodynamic profile that's characterized by wider air dams and a bigger grille up front, a redesigned front splitter, and a relatively small rear wing with a hollow middle section. The wing's distinctive shape was chosen because it adds stability by providing the rear end with downforce while giving hot air a path out of the engine bay. Bugatti also made changes to the steering and suspension systems, and it gave the seven-speed, dual-clutch automatic transmission 15% shorter gear ratios. In turn, the Profilee stands proud as the fastest-accelerating member of the Chiron range: it takes 2.3 seconds to reach 62 mph from a stop. Keep your foot down and the speedometer will indicate 124 mph in 5.5 seconds, 186 mph in 12.4 seconds, and it will keep going until 236 mph. These numbers are provided by a mid-mounted 8.0-liter W16 engine quad-turbocharged to 1,500 horsepower. Bugatti Chiron Profil?e View 16 Photos Executives planned to cap Profilee production at 30 units but ended up canceling the project. "We started with the design and development of the Chiron Profilee in autumn 2020. By the time we saw the pre-series vehicle coming out of production, all Chiron slots limited to just 500 were assigned," explains Bugatti president Christophe Piochon.  Profilee production was never launched, but the only example built is fully street-legal in European markets. It's finished in a shade of silver called Argent Atlantique that was created specifically for it, and the bottom part of the car features bare carbon fiber that's tinted in Bleu Royal Carbon. Inside, the Profilee is the first Chiron fitted with woven leather on the dashboard, the center console and the door panels. Bugatti notes that completing the interior required using over 2,600 meters of leather strips. The cabin is fitted with a pair of comfort seats. RM Sotheby's will auction off the Chiron Profilee in Paris, France, on February 1, 2023.

How design follows function in the Bugatti Chiron Pur Sport and Super Sports 300+

As the successor to the world-beating Veyron, the Bugatti Chiron had big shoes to fill, and by every measure it has succeeded. With its 304-mph top-speed run last fall, the latest Bugatti hypercar has handily beaten all expectations, and Bugatti President Stephan Winkelmann has even publicly stated that the company will no longer chase speed records. One could argue that the Chiron's work here is done, and yet it's merely half way through its projected lifecycle. What more could it possibly accomplish? Bugatti's answer: Go faster on a road course. To accomplish this, the Chiron Super Sports 300+ formula would have to be cast aside for something entirely new. After all, the things that make a car fast in a straight line are only part of the equation when it comes to conquering a race track, and with that mission, the Chiron Pur Sport was born. These two models' diverging missions necessitated distinct design. To learn more about just how differently they were formed, Autoblog attended a virtual round-table with Frank Heyl, Bugatti deputy design director, and Jachin Schwalbe, Bugatti head of chassis development. The distinctions are most evident in their profiles, where the longtail design of the Super Sports 300+ radically alters the Chiron's entire rear "box," making the Pur Sport's sharp rear cut-off seem almost inelegant by comparison. The slow, clean taper of the longtail design accomplishes the same thing aerodynamically that it does aesthetically. When the car is in top-speed mode, the rear spoiler even remains stowed. This design significantly shrinks the low-pressure zone behind the car, reducing the resulting drag, but that absent spoiler also detracts from the Chiron's stability. To compensate for the lack of spoiler deployment, Bugatti's engineers altered the flow beneath the car and through the rear diffuser. Heyl describes this as "free" downforce, because there's no corresponding penalty in drag from gains found with these underbody features.   With the Pur Sport, Bugatti went the other direction. This track-focused car gives up a ton of top speed to its sibling in exchange for nimbleness and acceleration, so being able to cut the minimum hole in the air is far less important. Think of design as a zero-sum game, Bugatti's team says.

Bugatti breaks the 300-mph barrier in a longtail Chiron prototype

In one fell swoop, Bugatti reclaimed the top speed crown from Koenigsegg, and became the first hypercar manufacturer to break the 300-mph barrier. Andy Wallace, the French firm's official test pilot, recently set a speed record in a purpose-built, Chiron-based prototype on the Ehra-Lessien track in Germany. With 16 cylinders screaming in unison a foot away from his eardrums, Wallace reached 304.773 mph on Ehra-Lessien's 5.4-mile straight. To add context, the Veyron Super Sport topped out at 267.856 mph, and the Koenigsegg Agera RS stopped accelerating at 284.550 mph. Japan's Shinkansen bullet train normally runs at about 200 mph. The record-setting Chiron is faster than many small, Cessna-like aircrafts, and it can outrun a majority of the helicopters in the skies. Bugatti calls the record-setting car a pre-production version of a Chiron derivative. While technical details remain under wraps, we can tell its rear end has been extended in order to add downforce without creating drag. Round vents drilled into the top part of the front end reduce turbulence in the wheel wells, while peeking inside reveals a roll cage and a Sparco bucket seat for the driver. The prototype looks a little bit lower than a regular Chiron, too, but we'll have to wait until Bugatti publishes more information to find out what lies beneath the carbon fiber bodywork, and whether any of it will reach production. Italy's Dallara helped develop the special Chiron. Michelin contributed a great deal of expertise to the project, too. It provided Pilot Cup Sport 2 tires reinforced to handle 5,300 Gs while remaining street-legal. The company went as far as sending the four tires through an X-ray machine to scan for even the smallest imperfections. The run comes as a surprise, because the company's interest in setting speed records seemingly waned after it released the Chiron. Getting to 304 mph required a tremendous amount of effort, but Bugatti now has two additional bullet points on its resume. It's the first automaker to break the 300-mph barrier, and the Chiron stands out as the fastest car in the world.  We expect to learn more about Bugatti's record-setting run — including what's next for the record-breaking car — in the coming weeks as the firm continues celebrating its 110th birthday. In addition to the speed record, the celebrations have so far spawned the one-off La Voiture Noire and the limited-edition Centodieci.