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Bonhams will offer a 2024 Bugatti Chiron Super Sport as lot 45 of its Laguna Seca sale on Thursday 13 August 2026, with an estimate of $4,300,000 to $4,800,000. Chassis VF9SW3V39RM795109 is one of roughly 80 Super Sports built, it has covered fewer than 1,325 miles from one owner, and it was ordered through Bugatti’s Sur Mesure programme with more than $450,000 in bespoke options on top of the list price. It is also, along with the Mistral, the end of the line for the W16 engine.
The Sur Mesure Chiron Super Sport in detail
The lot and the specification
The sale is the Laguna Seca Auction, held at WeatherTech Raceway Laguna Seca on 13 August 2026 during Monterey Car Week. The car is a Premium Lot, which in Bonhams practice means online bidding is not available for it and a bidder has to be registered through another route.
The exterior is Glacier with Rouge Étoilé lower body accents, a two-tone combination applied through Sur Mesure, Bugatti’s Molsheim-based bespoke programme. Bonhams highlights one detail in particular: the car carries custom paint lines around the headlights, a treatment the catalogue describes as freshly developed and fitted to very few Chirons.
The wheels are the Super Sport design in magnesium, finished gloss black, with Italian Red brake callipers. The Sky View glass roof is fitted. Inside, the car is trimmed in Italian Red with Blanc leather over the comfort seat option, with matte carbon fibre, black anodised aluminium, Italian Red seatbelts and rear-view mirror, and the Rembrandt Bugatti Dancing Elephant embroidered in gold thread on the headrests.
What the Super Sport changed
Bugatti introduced the Chiron Super Sport on 8 June 2021, with customer deliveries from early 2022 at a net price of €3.2 million. Around 70 to 80 were built, including the final L’Ultime car, making it the last chapter of the Chiron series.
The visual change is the tail. The Super Sport’s bodywork is extended by 25 centimetres over the standard Chiron, which together with a lower deflector reduces the tear-off area at the rear by 40 per cent and improves high-speed stability. Front fender vents, air curtains and enlarged intakes complete the package, and Bonhams reads the fender vents as a reference to the EB110 of the early 1990s.
The exhaust is stacked, two pipes either side of the diffuser, and the chassis received revised geometry, adaptive dampers, active ride-height adjustment and rear-wheel steering. Tyres are bespoke Michelin Pilot Sport Cup 2, individually X-rayed by the manufacturer, on reinforced aluminium wheels.
1,578 hp, and a limiter at 273 mph
The engine is the 8.0-litre quad-turbocharged W16, raised from the standard Chiron’s 1,500 PS to 1,600 PS, which is 1,578 hp or 1,177 kW. Torque is 1,600 Nm, or 1,180 lb-ft. Drive goes to all four wheels through a seven-speed dual-clutch transmission.
Bugatti quotes 0 to 100 km/h in 2.4 seconds, 0 to 200 km/h in 5.8 seconds and 0 to 300 km/h in 12.1 seconds, from a car weighing close to 2,000 kg. Bonhams cites 0 to 60 mph in 2.3 seconds and notes that at full load the gearbox does not reach seventh until 261 mph.
Top speed is electronically limited to 440 km/h, or 273 mph. The limit exists because the tyres, not the engine, set the ceiling for a customer car. The unlimited figure everyone remembers belongs to a different machine: on 2 August 2019 Andy Wallace ran a Chiron Super Sport 300+ prototype to 490.484 km/h (304.773 mph) at Volkswagen’s Ehra-Lessien facility, verified by TÜV. This car is descended from that prototype; it is not that prototype.
Sur Mesure, and why it matters to the price
Sur Mesure is Bugatti’s highest tier of personalisation, run from Molsheim, and it is the mechanism by which two cars from a run of 80 end up looking nothing alike. On this car it accounts for more than $450,000 of the original invoice.
That figure is the interesting part of the lot. At this level of the market, options rarely return their cost at resale, but a coherent commission can widen the pool of bidders who want that specific car rather than any Super Sport. The paint lines around the headlights, the two-tone body and the gold Dancing Elephant embroidery are the kind of details that make a car identifiable in photographs, which matters for a model where most examples are white, black or silver.
The car is a single-owner, US-delivered example showing under 1,325 miles, and it comes with a case of spare keys and a thumb drive holding photographs and video of the car during production. That last item is a small thing, but production documentation is increasingly part of how recent hypercars are authenticated.
Two W16 farewells in the same week
The timing is worth noting. This Chiron Super Sport sells at Laguna Seca on 13 August. The following day, at RM Sotheby’s Monterey sale, a Bugatti Mistral roadster carrying the same 1,578 hp W16 is estimated at $7,500,000 to $9,500,000. Two cars, one engine, one week, and a gap of roughly $3 to $5 million between them.
The gap is explained by numbers and by format. Bugatti built around 80 Super Sports and 99 Mistrals, so scarcity is comparable, but the Mistral is the only open car and holds the roadster speed record. The Super Sport is the faster car in a straight line and the more usable one, and it costs materially less.
For anyone tracking W16 values, the two results read best together. If the Super Sport lands in its estimate and the Mistral lands in its own, the market is saying it will pay a large premium for the roadster’s novelty. If the Super Sport outperforms, the message is that buyers are pricing the engineering rather than the roof.