Koenigsegg rates the Sadair’s Spear at 1,625 hp when running on E85, or 1,300 hp on gasoline. The company describes this track-focused hypercar as fully road-legal across global markets; that is Koenigsegg’s claim, not an independent check of every jurisdiction’s rules.
What is the Koenigsegg Sadair’s Spear?
Unveiled by Koenigsegg on June 25, 2025, the Sadair’s Spear is a track-focused development of the company’s Jesko hypercar, with revised aerodynamics, upgraded brakes and suspension, a track-oriented interior, and more power. Koenigsegg says the development reduced weight by around 35 kg; its technical sheet lists a curb weight of 1,385 kg and a dry weight of 1,320 kg. These are manufacturer-published figures, not independent measurements. Koenigsegg’s launch announcement and technical sheet describe the car and its specifications.
How much power does it make?
The headline 1,625 hp rating applies on E85. On gasoline, Koenigsegg specifies 1,300 hp at 7,800 rpm. The twin-turbocharged, aluminum 5.0-liter V8 has a flat-plane crankshaft, dry-sump lubrication, and a stated redline of 8,500 rpm. These are Koenigsegg specifications, not independent test results. The technical sheet gives the fuel-specific output and engine details.
Torque and transmission
Koenigsegg lists 1,000 Nm of torque from 2,700 to 6,170 rpm, with a peak of 1,500 Nm at 5,100 rpm. Power is sent through a 9-speed Light Speed Transmission with an electronic differential. The launch announcement says the transmission can rev at 46,000 rpm per second, a manufacturer claim rather than an independently measured result. Koenigsegg’s announcement and published torque specifications provide those figures.
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Is the Sadair’s Spear street legal?
Koenigsegg describes the Sadair’s Spear as fully road-legal across global markets while emphasizing its track focus. That wording should be understood as the manufacturer’s broad claim: the cited materials do not independently verify compliance in every country or explain local registration requirements. Check the rules and vehicle documentation for the jurisdiction where the car would be registered. The launch announcement is the source for Koenigsegg’s road-legality description.
What makes it track-focused?
Aerodynamics
The technical sheet lists 850 kg of downforce at 250 km/h and a maximum of 1,765 kg, qualified by Koenigsegg as “without bleeding.” Those values should not be treated as a single directly comparable figure: the first is tied to a stated speed, while the maximum carries the manufacturer’s configuration qualification. Listed hardware includes a dynamic, top-mounted twin-profile rear wing, active front underbody flaps, large wheel-area diffusers, and side winglets. Koenigsegg’s technical sheet details the figures and components.
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Brakes, suspension, and tires
Koenigsegg lists ventilated ceramic brake discs measuring 410 mm at the front and 395 mm at the rear, with six-piston front calipers and four-piston rear calipers. Cup2 tires are standard; Cup2R tires are optional. The company also identifies adjustable suspension as part of the track-oriented package. The equipment and specification information covers these components.
What does the name mean?
According to the launch announcement, Sadair’s Spear was the favorite racehorse of Jesko von Koenigsegg, whom he rode in his final race in 1976. The name follows the earlier Jesko tribute to Koenigsegg’s father. Koenigsegg’s naming explanation gives that history.
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What is not established?
The cited manufacturer materials do not establish a current price, production quantity, order availability, or delivery status. They also do not provide an independent, same-method comparison with another hypercar, so the published power, weight, and downforce figures alone do not establish that the Sadair’s Spear is superior to a competitor.
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