A small company from the Swedish Angelholm continues to make history, confirming over and over again that overblown staff and huge R&D budgets are not the main thing. Here, with the forces of only 70 high-class specialists, unprecedented hitherto technologies are born, breathtaking speed records are set, and each of her cars, without exaggeration, receives the status of a cult model. We are talking about Koenigsegg, which again managed to do the impossible and surprise the world with Jesko hypercar.
The Koenigsegg Jesko concept is ideologically close to the Agera RS, because it is no coincidence that the company itself calls it the heir to a record hypercar. In an attempt to create an ultimate track car for public roads, the Swedes once again crossed the threshold of technological limitations, improving the already fantastic chassis of the Ager. For Jesko, they designed another aerodynamic body kit, developed a new engine and a robotic gearbox with eight (!) Clutches.
Jesko hypercar was named in honor of Jesco von Koenigsegg, father of the head of Christian Koenigsegg. In his early years, he helped Koenigsegg Automotive deal with many problems, including financial ones. Now Jesco von Koenigsegg is 80 years old. By the way, at the development stage, the car had a completely different name - Dominera, which is translated from Swedish as “domination”. Christian revealed his real name only in Geneva, and for Jesco it was a big surprise.
Jesko is based on a new monocoque: a carbon fiber and aluminum sandwich construction with integrated fuel tanks and safety cage. For the first time in the automotive industry, the world's strongest fiber, Dyneema ultra high molecular weight polyethylene, is used to strengthen it. The monocoque is 40 millimeters longer and 22 millimeters higher than the Agera RS. Static torsional stiffness - 65,000 Nm / deg. The Bugatti Chiron has 50,000 Nm / deg. A small increase in size made it possible to make the new hypercar a little more spacious, and also had a positive effect on visibility. Jesko body panels are made of carbon-Kevlar prepreg.
The “heart” of Koenigsegg Jesko was the newly designed 5.0-liter V8 with two ceramic-driven turbochargers. Its feature is the world's lightest “flat” crankshaft. The necks of such a crankshaft are located at an angle of 180 degrees, which provides a quicker response to the gas pedal, a loud sound and good “torsion”. The crankshaft is made by a small workshop in southern Sweden from solid steel billets. The mass of the part is 12.5 kilograms.
Engines with a “flat” crankshaft are prone to vibrations, which is why Koenigsegg also developed ultra-light piston rods. The connecting rods are steel. They weigh as much as titanium, but a little stronger. Another innovation is the modified head of the block with a vortex generator on the inlet side, which increases turbulence, thereby increasing the efficiency of the combustion process of the fuel mixture. The air supply to the superchargers helps to get rid of the turbolag. It consists of a 20-liter carbon tank and an electric compressor that pre-spins large turbines with a 20-bar “injection” of air. A similar system called PowerPulse is used on Volvo diesel engines.
But this was not enough for Koenigsegg engineers: Jesko was the first production car with a system of pressure sensors in individual cylinders and three fuel nozzles per cylinder.
As a result, the G8’s return on conventional fuel was 1,280 horsepower, and E85 bioethanol 1,600. Peak torque of 1500 Nm is available at 5100 rpm, 1000 Nm - in the range of 2700–6170. The cutoff is triggered at 8500 rpm. The mass of the engine is 189 kilograms.
The curb weight of the Koenigsegg Jesko is 1420 kilograms, which is only 25 kilograms more than the Agera RS, and 40 less than the One: 1.
For such a powerful unit, an appropriate transmission was required, and in Koenigsegg it was made from scratch. It turned out that an ordinary preselective “robot” with two clutches was too heavy - a digesting 1,500 Nm box would weigh about 140 kilograms - so the Swedes came up with a 90-kilogram “replacement” without synchronizers and with eight multi-plate clutches in an oil bath. The box is called Light Speed Transmission (LST).
Light Speed Transmission (LST) consists of eight multi-plate clutches (one designed for differential), eight actuators, eight pressure sensors and three drive shafts.
The feature of the 9-speed LST is the ability to skip through several gears at once, when ordinary DCTs switch only to the adjacent one. The Ultimate Power on Demand (UPOD) system is responsible for this, which compares the speed of the car and the engine and activates exactly that gear, which will provide an “explosive” acceleration. The change of steps occurs without jerks and literally "at the speed of light" (20-30 milliseconds), since all the clutches open and close at the same time. For comparison: the ISR “robot” in the Lamborghini Aventador LP 700-4 switches in 50 milliseconds, and the Ferrari FXX in just under 100 milliseconds.
The switching mechanism of the LST is two-mode: a light press on the steering wheel paddles or the transmission selector changes the step to the next, if it is pressed harder, UPOD will work, and the box will jump to the transmission that is optimal for acceleration, for example, from seventh to fourth.
To improve handling and stability, Koenigsegg equipped Jesko with Triplex suspension. This third horizontal shock absorber system was developed for Agera in 2010. At the same time, if “Ager” had an additional shock absorber only at the back and helped fight squats during a sharp start, then Jesko has the same system on the front axle, but it fights pecks at high aerodynamic load.
In addition, Koenigsegg Jesko is equipped with an adaptive Active Rear Steering system, which turns the rear wheels in any direction up to three degrees. At low speed - in reverse from the front to reduce the turning radius, at high - in the same direction as the front, “stretching” the wheelbase and improving steering.
The proprietary bi-directional synchro-spiral door hinge has also been redesigned. Now it opens a little outward and upward, which provides even more space for entry and exit, and also reduces the likelihood of a door hitting a high curb.
In addition, Jesko has active engine mounts from Regera, Öhlins adaptive shock absorbers with custom electronics developed by Koenigsegg, and new forged aluminum or hollow carbon wheels (Koenigsegg does not disclose the secret of their manufacture). Front carbon fiber measuring 20 inches weigh 6.7 kilograms each. The rear 21-inch - 8.4 kilograms. Michelin Pilot Sport Cup 2 tires are standard equipment, the Pilot Sport Cup 2 R is an option, and is designed for dry asphalt only.
Koenigsegg simply could not ignore the aerodynamics of Jesko and, of course, improved it in all respects. To do this, I had to redraw the front splitter, the rear wing and the diffuser. The splitter, by the way, the largest on Koenigsegg hypercars, is equipped with two movable dampers that change the center of aerodynamic pressure during braking. The two-wing Koenigsegg One: 1 style wing is installed as close to the edge of the body and has the shape of a boomerang. To minimize disturbances, the active wing is mounted to the cockpit dome on horizontal brackets.
Red highlighted areas responsible for the creation of downforce.
For aerodynamic efficiency, every element is important. At Koenigsegg Jesko, even the side mirrors give an extra 20 kilograms of downforce and help direct airflow to the rear of the car. At 250 kilometers per hour, the force acting on the hypercar is equivalent to 800 kilograms, at 275 - a ton! The maximum value is an incredible 1,400 kilograms. These numbers are 30 percent more than the Koenigsegg One: 1, and 40 more than the Agera RS. What can I say! This is even more than the crazy Apollo Intensa Emozione.
Being a truly tracked hypercar, Koenigsegg Jesko is still not without a touch of luxury that is more typical of Grand Turismo class cars. The salon is replete with premium materials: genuine leather, Alcantara, aluminum, carbon fiber, glass. Jesko is equipped with heated and electric seats, an adjustable steering column and pedal block, a SmartWheel steering wheel with touch panels and a tactile response, a five-inch SmartCluster digital dashboard, and a SmartCenter media complex with a nine-inch display.
But the main element of the interior in the era of the ubiquitous transition to the "digit" was the analog accelerometer, framed by a bezel, like expensive chronographs.
Koenigsegg has not yet revealed the main thing - the dynamic characteristics. But one thing is certain: the Jesko 300 can accelerate to 300 miles per hour (483 kilometers per hour). And this means that Jesko has all the makings of becoming the fastest car in the world: an Agera RS record of 447 kilometers per hour.
The retired Koenigsegg Agera RS with a power increase package gave out 1360 forces and 1371 Nm of torque. The first "hundred" hypercar exchanged 2.5 seconds after the start. Maximum speed on the passport - 420 kilometers per hour.
In total 125 copies of Jesko will be collected. The hypercar price starts at three million dollars or 199 million rubles at the current rate, and, according to some reports, Koenigsegg has already received 90 pre-orders.