Hot! Bugatti Teases Mysterious New Model With X-Shaped Taillights


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It's called "Bolide", is still a kind of concept (production not yet decided) - 1 850 PS W16 and weight of 1 240 kilogrammes.

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Reduced, raw, authentic. With the technological concept of the Bugatti Bolide1, the French luxury car manufacturer is now providing the answer to the question what if Bugatti built a radically light vehicle around its iconic 8.0-litre W16 engine? The experimental study of the Bugatti Bolide is a track-oriented hyper sports car featuring a W16 engine derived from series production as powertrain combined with a minimal body for maximum downforce. It therefore promises to offer the ultimate Bugatti performance kick.

At the same time, the Bugatti Bolide is the most extreme, uncompromising, fastest and lightest vehicle concept in the company’s recent history – with an incredible weight-to-power ratio of 0.67 kg per PS. This is made possible by the combination of the W16 engine with 1,850 PS and a vehicle weight of just 1,240 kilograms. The Bugatti Bolide achieves figures that are almost on par with Formula 1 while its top speed is well above 500 km/h – without compromising maximum handling and maximum agility. The Bolide takes 3:07.1 minutes to complete a lap of Le Mans and 5:23.1 minutes to get around the Nordschleife*.
* Simulated values

The idea – what if? An experiment.

“Bugatti stands for the continuous quest for technological innovations – in alignment with the company’s brand values of excellence, courage, dedication. And Bugatti never stands still. We are perpetually aiming for new and exciting goals, and the question that we always keep in mind is: what if?” says Stephan Winkelmann, President of Bugatti. “We asked ourselves how we could realise the mighty W16 engine as a technical symbol of the brand in its purest form – with solely four wheels, engine, gearbox, steering wheel and, as the only luxury, two seats. Important aspects of our considerations were fine-tuning our iconic powertrain without any limitations as regards the weight-to-power ratio. These considerations resulted in the Bugatti Bolide. An uncompromising experiment, a thoroughbred, a Pur Sang that, in its brute exclusivity, impresses above all with high performance, low weight, and a driving experience in a whole new dimension. Driving the Bolide is like riding on a cannonball.”

The technology – powertrain designed specifically for the racetrack
“The Bolide is the ultimate answer to the question of what if Bugatti built a track-focused hyper sports car that met the FIA’s safety requirements. Designed around the W16 powertrain with the minimum body structure and unbelievable performance data. The result: the smallest possible shell for a breathtaking performance vehicle that allows the W16 to truly come into its own,” explains Stefan Ellrott, member of the Board of Management of Bugatti and Head of Technical Development. “All of Bugatti’s expertise has been condensed into the Bugatti Bolide. It is therefore an innovative information source for future technologies. The Bolide is thus more than just an intellectual exercise.

“In terms of technology and organisation, the Bolide was one of the most ambitious projects of my career,” says Frank Götzke. After playing a crucial role in the development of the Veyron 16.4 and the Chiron2, the engineer was also responsible for the technical concept of the Bolide. In only eight months, he created a completely new vehicle around the well-known Bugatti W16 all-wheel powertrain, which was highly modified for the project.

The 8.0-litre W16-cylinder engine with 1,850 PS and 1,850 newton-metres of torque is at its heart. Bugatti has designed the drive specifically for use on the racetrack and has optimised the engine and gearbox in particular for higher engine speeds. Among other things, this includes dethrottling the intake and exhaust system to achieve an even faster, more spontaneous, and extreme response characteristic. The four newly developed turbochargers are fitted with optimised blades in order to build up more boost pressure and power at higher engine speeds. In order to achieve optimum lubrication even under extremely high centrifugal forces, the oil circuit, oil pressure, check valves, baffles, oil tanks, oil reservoirs, and pump design of the dry sump lubrication have been optimised. The weight of the drive system is also significantly reduced at the same time.

Instead of water-to-air intercooling, the Bugatti Bolide has air-to-air intercooling with water pre-cooling for optimal performance on the racetrack. The inflow takes place from the front via one internal and one external air duct on each side of the vehicle. The two water coolers, which are arranged in front of the front axle, provide a more effective radiator system in terms of flow than is customary even in Formula 1. Three air-cooled oil coolers for engine, transmission, and differential with water pre-cooling reduce the temperature even on dynamically demanding race laps. Newly developed and hybrid carbon titanium turbofan radial compressors ventilate and cool the high-performance racing brake system.

1,850 PS and 1,240 kilograms – weight-to-power ratio of 0.67 kg/PS
In order to achieve a dry weight of 1,240 kilograms, all the stops have been pulled out with regard to the materials and production processes used, both in terms of what is currently feasible and what will be possible in the future.
All the screw and fastening elements of the Bolide are made completely out of titanium. In addition, hollow, thin-walled functional components made of an aerospace titanium alloy are used in many places. These originate from a 3D printer and are extremely thin with wall thicknesses of up to 0.5 millimetres. However, they are still very stable with a tensile strength of 1,250 newtons per square millimetre. Hybrid components, such as the 0.5- metre-long auxiliary drive shaft, combine wound high-strength and ultra-stiff carbon fibres with 3D-printed titanium end fittings and can withstand a continuous operating temperature of up to 260 degrees Celsius. In this example, this reduces the weight by around half to 1.5 kilograms and, due to the reduction of the rotating masses, increases the revving ability of the engine at the same time. The forces acting on the front and rear wings are transferred by ultralight but very solid titanium elements. They weigh a mere 600 grams at the front and an astounding 325 grams at the rear.
A worldwide innovation is the morphable outer skin of the intake scoop on the roof, which provides active airflow optimisation. If the vehicle is driven at a slow speed, the surface of the scoop remains smooth. In contrast, a field of bubbles bulges out when driven at fast speeds. This reduces the aerodynamic drag of the scoop by 10 percent and ensures a 17 percent reduction in lift forces. In addition, the flow onto the rear wing is optimised. At 320 km/h, the downforce is at 1,800 kilograms at the rear wing and 800 kilograms at the front wing.
As in Formula 1, the Bolide decelerates with racing brakes with ceramic discs and coatings. The brake callipers weigh only 2.4 kilograms each. The front forged magnesium rims with central lock weigh 7.4 kilograms, while the ones at the rear weigh 8.4 kilograms – with a very wide tyre size of 340 millimetres on the front axle and 400 millimetres on the rear axle (Chiron: 285 mm at the front and 355 mm at the rear). A compressed-air-driven jack system with four rams makes tyre changing easier, a quick refuelling system allows pressure refuelling.
Among other things, a push rod kinematics system with horizontal dampers ensures precise handling. The oil reservoirs are arranged inside the dampers, which improves aerodynamics. Weighing only 100 grams, the push-rods are designed as a thin-walled and flow-optimised titanium lightweight construction with a buckling load of 3.5 tonnes, which corresponds to a dry weight of nearly two Chirons. The welded control arms made of aerospace-grade stainless steel have a tensile strength of 1,200 newtons per square millimetre and are also designed as wing profiles.

Light monocoque made of carbon
The Bugatti team developed a light monocoque made of carbon around the drive. The integral front end flanged to it is also made of high-strength carbon fibres, as are the fully aerodynamically effective underbody and the monocoque itself. The single-fibre tensile strength of the fibres used is 6,750 newtons per square millimetre, the single-fibre stiffness is 350,000 newtons per square millimetre. These represent figures that are only reached in the aerospace industry. The rear frame, designed as a welded steel assembly, offers a maximum tensile strength of 1,200 newtons per square millimetre, despite a wall thickness of only 1 millimetre – this is made possible by the use of high-strength stainless steel, which is otherwise only used in aviation.

With an overall height of only 995 millimetres, the Bugatti Bolide is exactly the same height as the historic Bugatti Type 35, depending on the steering wheel and truncated windscreen, and about 300 millimetres flatter than the Chiron. The wheelbase is 2.75 metres and the width 1.99 metres. Like in an LMP1 racing car, the occupants fold up the doors that are hinged at the front at an angle, sit on a sill that is only 70 millimetres wide, as in a Type 35, and then position their feet in the interior. Thanks to a side wall that is about 150 millimetres lower than that of the Type 35, the procedure is quick and easy – for drivers up to a body height of 2 metres.

Safety is ensured with safety equipment designed in accordance with FIA regulations. These include HANS device compatibility, an automatic fire extinguishing system, a towing device, pressure refuelling with fuel bladder, central locks for the wheels, lightweight polycarbonate windows, and a six-point harness system. The monocoque side floors with integrated carbon coolant pipes are simultaneously designed as side impact structures and structural reinforcement of the monocoque. The driver can see all the relevant data on a motorsport display. For an optimum sitting position, both the pedals and the passenger footrest can be moved by 150 millimetres.

The design – the quintessence of form follows performance
The experimental study of the Bugatti Bolide is also a very special project for Achim Anscheidt, Director of Design at Bugatti. “In my 16 years at Bugatti, I have never worked on a more extreme concept.” The design of the Bolide is radically tailored to the idea of lightweight construction, and the design principle therefore follows on from the overriding goal of achieving a fascinating weight-to-power ratio of 0.67 kilograms per PS.

“It is the very first time that my team had the freedom of creating an absolutely minimalistic design around the W16 engine. The result is the most provocative proportion of a modern Bugatti ever and the distilled quintessence of our Bugatti design ethos that form follows performance,” says Anscheidt. “The Bugatti Bolide, however, is a project more technically driven than shaped by style.”

The stylistic challenge was to transform the unyielding demands of aerodynamics and lightweight construction into an aesthetic that reflects the unique Bugatti DNA, but at the same time illustrates the ambition of an impressive weight-to-power ratio. The overall appearance is dominated by air ducts that are more reminiscent of aerodynamically sophisticated Formula 1 racing cars than classic sports cars. The seemingly filigree and half-open front end is a striking example of the combination of air duct expertise, lightweight construction requirements, and aesthetic dynamics.

The dramatic effect of the overall proportions is made clear by the aerodynamically favourable overall height of only 995 millimetres. The driver’s ultra-sporty seating permits the low-slung shape of an automotive low-flying aircraft. It is therefore not surprising that the appearance of the Bugatti Bolide invokes the so-called X-planes of aviation history and shows a clear X signature from every perspective. It is indirectly reminiscent of the Bell X-1 jet aircraft which was flown by Captain Charles “Chuck” Yeager 1947, the first person to break the sound barrier at Mach 1.06. The Bugatti Bolide “X-periment” has the shape of an aerodynamically optimised, uncompromising racing car and offers ultra-sporty, superlative performance – with no hint of luxury.


As with other Bugatti vehicles, the Bugatti design team also makes use of a colour split in the Bolide. Compared with other models, the share of visible carbon parts is increased by up to 60 percent. Only around 40 percent of the surfaces are painted – in a re-interpretation of the historic French Racing Blue.

“Fifteen years ago, Bugatti succeeded in creating a new segment with the Veyron 16.4: that of the superior hyper sports car. With the Chiron launched in 2016, we systematically developed this segment further. The models bear witness to power and elegance, uniquely combining technology, design, luxury, and quality in a hitherto unknown combination,” explains Anscheidt. “In contrast, the Bugatti Bolide is an absolute rebel. It is clear to see that its only aim is to convey the pure power of the W16 engine in a visually and technically unadulterated form. Reduced, raw, and authentic – like freshly-caught sashimi”.

The DNA – Bugatti Type 35
With the Type 35, Bugatti produced one of the most successful racing cars of all time. The open-top sports car achieved over 2,000 victories between 1924 and 1930. Today, the Type 35 is a legend in racing history. It was inimitable in terms of technology, design, and performance in its time – and still is today. Ettore Bugatti used a double roller bearing and triple ball bearing crank mechanism for the first time. This allowed the engine to rotate at up to 6,000 rpm to move the eight pistons. Two carburettors increased the power to an initial 95 PS. With this engine, the first Type 35 cars were able to reach speeds of over 190 km/h. In the later Type 35 B evolutionary models with a 2.3-litre eight-cylinder engine and compressor, the power output increased to 140 PS, and the Bugatti achieved a top speed of more than 215 km/h.

As well as their incredible power, the engines were primarily renowned for their reliability and endurance. And their lightness. Ettore Bugatti did not compromise when it came to lightweight construction and best possible driveability. He developed special smooth-running wheels to reduce the unsprung masses and, as a result, improve the response of the suspension. The new hollow-bored and forged front axle weighed only 10 kilograms and was nevertheless still stable. A race-ready Bugatti Type 35 weighed only around 750 kilograms. A masterpiece in terms of the weight-to-power ratio.

The verdict – a track-oriented thoroughbred of modern times
The Bugatti Bolide is the unrivalled technological concept of a track-focused Bugatti hyper sports car. The combination of 1,850 PS and 1,240 kilograms dry weight ensures an unbelievable weight-to-power ratio. This puts the Bolide with its W16 engine at the absolute pinnacle in terms of combustion engines used in automotive engineering. “For the first time, we are showing what the W16 engine is really capable of. We have freed the vehicle of all baggage and have illustrated and combined the engine with the lightest possible chassis to create the ultimate Bugatti and to ensure the ultimate driving experience. With the Bolide, we are presenting our interpretation of a Bugatti track car of modern times to Bugatti enthusiasts all over the world and finally make their most fervent wishes come true,” explains Stephan Winkelmann.

Whether the Bugatti Bolide will go into series production, has not been decided yet.
 
More power than reported, impressive...

BUT! Is there a performance figure of this thing that isn't complete bullshit? All I see is claimed video-game simulation numbers.
 
Those wheels are so ugly, the car itself is pretty cool, especially the black and red combo, but it actually seemed more compact and the wheels seemed larger on the spy shots, it’s rare when the car looks better on spy shots than in production photos.
 
Yes, it's just a concept - a pipe dream perhaps for all but one lucky individual who has unlimited wealth. Still, it's quite something to behold.
 
I personally believe this beast to be an amazing showcase of brutal technology.
There is a working prototype of the car lapping the Paul Ricard so it's not just a thin-air maquette and the machine truly brings it to the next level in terms of brutality the idea of a track car.
Will it be made or not for customers to me it doesn't change that much, I am just glad that Bugatti decided to come up with this idea in the first place and then to show the World something which, at the end of the day, can be called as truly sensational.
 
You guys are very optimistic with the weight. The engine alone is 436kg and the gearbox is 124kg. Then the diff + propshaft capable of handling 1600 Nm of torque would be at least another 40kg. So that's 600kg already. Then add the chassis and the body which on car this big would be at least 200kg (made from CF), and wheels with suspension which would be at least another 200kg combined and you are already at 1000kg. It's gonna be a minor miracle if they get the weight under 1500kg. I would guess more like 1600kg kerb. Which is still 400kg (or more) weight saving compared to the Chiron, mind you. Not even sure removing so much weight from a car is possible, even if the interior is completely race car stripped.

Well that was a nice theory until exactly two posts later.....
 
Looks pretty cool, although I am a bit unsure what this car is supposed to be. Are they planning on selling it as track only car in the lieu of SCV12, or is it just a one-off technological demonstrator?

The numbers are nuts and if true, the 1240kg dry weight is extremely impressive. However, considering the uncertain nature of the car, I am not sure how much testing actually went into the various new superlight components and into the car as a whole. What kind of track driving regiment is the car supposed to have to cope with and for how long?

I am also quickly starting to hate this new trend of publishing simulated acceleration and lap time figures. Just because you can easily do that now, it doesn't mean it has any bearing on reality. The 919 Evo did 5:19 actual Nurburgring lap, but from what I remember, the simulated best possible lap was something like 4:30.

Well that was a nice theory until exactly two posts later.....
Yeah, because I was under the impression this was gonna be a real car, either made for a racing series or to be sold in quantity as an unrestricted track only car. If you have to take into account component life time and the fact that some of these will have to be replaced, then the 100g 3D printed titanium suspension push-rod that takes 10h to print and costs 50000 dollars a piece or whatever might not be a feasible option anymore. But, maybe I am wrong and they will go on selling the car yet. And if some customer one day decides to weigh the car then I am gonna eat the humble pie.
 
Yeah, because I was under the impression this was gonna be a real car, either made for a racing series or to be sold in quantity as an unrestricted track only car. If you have to take into account component life time and the fact that some of these will have to be replaced, then the 100g 3D printed titanium suspension push-rod that takes 10h to print and costs 50000 dollars a piece or whatever might not be a feasible option anymore. But, maybe I am wrong and they will go on selling the car yet. And if some customer one day decides to weigh the car then I am gonna eat the humble pie.

We're talking Bugatti, the most expensive brand of all brands. I don't know what you were expecting?

To me it looks like the want to build the ultimate 21st century ICE hyper car, and it looks like they are well on their way to succeeding when reading the press release...
Because like @StartYourEngines said, it's clearly not just vapourware.

There's going to be plenty of people able to buy it if Bugatti decides to sell a few. The ultra rich only get richer, and even faster during Covid apparently....
 
And the 0,67?
What did it turn out to be?
Power to weight ratio and also torque to weight ratio too, if I am not mistaken.

Monster.

Edit: Although not road legal, the fact that this being track focused car that can also reach 500kmph is really something. They may create a LT version down the road, methinks.
 

Bugatti

Bugatti Automobiles S.A.S. is a French luxury sports car manufacturer. The company was founded in 1998 as a subsidiary of the Volkswagen Group and is based in Molsheim, Alsace, France. The original Bugatti automobile brand was established by Ettore Bugatti (1881-1947) in 1909 at Molsheim and built sports, racing and luxury cars. In November 2021, the company became part of Bugatti Rimac, a joint venture between Rimac Group and Porsche AG.
Official website: Bugatti

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