In the world of hypercars, the limits of what is possible are being pushed almost daily. But when Koenigsegg announces a new model, the automotive world holds its breath. Sadair’s Spear – the latest, most extreme variant of the Koenigsegg Jesko – is not just a technical masterpiece. It’s a car that asks questions about the meaning of limits in motoring. How far can one go to create a road-approved machine that might as well become a Le Mans racing star?
Koenigsegg Jesko? Meet its wilder cousin
Jesko model, named after the brand’s founding father Christian von Koenigsegg, was already a display of extreme capabilities in the Jesko Attack version. But Sadair’s Spear goes even further. What was previously a sporting frenzy has now evolved into a technological obsession with lightness, grip and power. Some of the sound insulation has been dropped, the interior and chassis components have been slimmed down – all to reduce the kerb weight to 1,385 kg, 35 kg less than in the Jesko Attack.
For comparison: Ferrari’s SF90 XX Stradale, also track-inspired, weighs about 1560 kg, and its power output reaches 1030 hp. That’s a lot… until you look at Sadair’s Spear, which generates 1,625 hp on E85 fuel – almost 600 hp more, at a much lower weight.
The engine – the heart of a beast that knows only one way: forward
Under the hood is a 5-liter twin-turbocharged V8 engine, reaching 8500 rpm. The torque? As much as 1,500 Nm, available from 2,700 rpm. That means lightning-fast throttle response, available without going into high gear. This is power that doesn’t wait. It overtakes.

It is mated to a 9-speed Light Speed Transmission (LST) – a box built by Koenigsegg from the ground up, with a multi-disc clutch. It allows you to change up to several gear ratios at once. Shifting gears? No seconds here, milliseconds here.
Koenigsegg Sadair’s Spear: fighter jet-like aerodynamics – 1765 kg of downforce at 360 km/h
Can a road car generate more downforce than it weighs itself? Yes. Sadair’s Spear generates 1765 kg of aerodynamic downforce at 360 km/h – 380 kg more than it weighs by itself. This effect is achieved thanks to a new floor, an active double-panel wing, a massive diffuser, channels in the wheel arches and huge air intakes.
By comparison, the Mercedes-AMG One, inspired by Formula One, achieves about 1,500 kg of downforce at 250 km/h – and the Koenigsegg then generates…. 850 kg. The difference? That’s where the Spear’s advantage lies: not only in top speed, but in absolute dominance in the corners.
Suspension that “reads” the race track
The chassis is based on a carbon monocoque, but has been refined with surgical precision. Triplex pushrod shock absorbers, new geometry, lighter springs – this is a suspension that analyzes every bump and adapts to it instantly. And when overloads of several “g’s” occur on the track, Sadair’s Spear doesn’t lose traction – he just starts working at full steam.
Added to this are carbon wheels and ceramic brakes (410 mm front, 295 mm rear). The tires? A choice of Michelin Pilot Sport Cup 2 or Cup 2 R, both ready to handle hellish friction and speeds up to 360 km/h.
Koenigsegg Sadair’s Spear – rawness with a touch of comfort
Inside, functional minimalism rules: carbon buckets, optional six-point belts, a digital cockpit on the steering column and a rearview camera. Infotainment? It’s there, but it doesn’t distract. It’s not about comfort, it’s about pure communication between driver and machine. It’s a cockpit, not a living room. But refined enough to cover a few hundred kilometers with a smile (and adrenaline) on your face.
Why “Sadair’s Spear”?
The name of the new model is a personal tribute: “Sadair’s Spear” is a race horse belonging to Jesko von Koenigsegg. A symbol of strength, unbridled speed and elegance in madness – exactly what this car represents. Thus, it is not just a machine. It is a manifesto of Koenigsegg’s philosophy: no compromises. Only passion, technology and speed.
Koenigsegg Sadair’s Spear – not a car, but a phenomenon
Koenigsegg Sadair’s Spear is more than a hypercar. It is a masterpiece of engineering that shows what a vision free of constraints is capable of. It’s a machine that breaks the laws of physics while still obeying all traffic regulations. And although many will never see it with their own eyes – it can already be said that it will go down in history.