THE KOENIGSEGG JESKO
Koenigsegg has unveiled an all-new megacar – the Koenigsegg Jesko – at the 2019 Geneva International Motor Show. Jesko inherits the mantle left by the Agera RS as the leading track-focused, road-legal car for those looking for the ultimate in vehicle performance.
Re-designed 5.0 litre twin-turbo V8 engine producing 1280hp on standard gasoline and 1600hp on E85 biofuel
Revolutionary new 9-speed Koenigsegg Light Speed Transmission (LST)
Advanced aerodynamics offering over 1000kg of downforce
Active rear-wheel steering
Re-designed carbon fibre chassis with more legroom, headroom and greater visibility
Jesko is named for Jesko von Koenigsegg, the father of company Founder and CEO, Christian von Koenigsegg.
Jesko von Koenigsegg was a key presence at Koenigsegg Automotive during its formative years. His considerable business acumen helped steer the company through many early challenges. Now retired and in his 80’s, Jesko von Koenigsegg and his wife, Brita, were on-hand at the 2019 Geneva Motor Show to see his namesake vehicle introduced to the world.
Even though the Agera turned out to be a road monster, there was a level of simplicity and humility to its design, something that reflects the character of both Koenigsegg as a company, and our founder, Christian von Koenigsegg. This design ethos is also present in Jesko. It’s both humble and assertive, but not angry.
The shape is instantly familiar and there are a number of design cues that tip their hat in respect to the outgoing Agera. The dip between the rear lamps, for example, which is present, but done in a more modern way. The wraparound windscreen is there, too, but now has more of a fighter jet stance thanks to a taller roof line. The headlamps were given a more dynamic approach, morphing closer to the Regera shape but retaining an identity of their own.
Cues from the Regera do not stop there. Jesko has a similar design at the rear with an open design for increased airflow and an exhaust reminiscent of the inverter heat extraction outlet on the Regera. The air ducts at the front wheel are also similar.
Jesko looks smaller than the Agera and Regera, thanks to it having more shape around the wheels. It’s actually 30mm taller and 40mm longer than the Agera, which allows for better ingress and egress, a more spacious cabin and better visibility.
It also looks more agile. We adopted a ‘shrinkwrap’ approach to skinning this car, using crisp angles and lines to eliminate empty spaces and make the design as effective as possible.
Koenigsegg’s all-new megacar – is powered by a newly designed, 1280hp (1600hp on E85), twin-turbocharged V8 engine that benefits from significant changes to the Agera engine it replaces.
At the core of the newly designed engine is the world’s lightest V8 crankshaft. Weighing just 12.5 kilos, Koenigsegg’s new flat-plane 180-degree crankshaft allows Jesko to produce more power, with greater efficiency, while achieving a higher 8500rpm rev limit.
The crankshaft is milled by small manufacturing house located in southern Sweden. It is made to Koenigsegg’s in-house design from a single solid steel billet.
The flat-plane design allows even firing across engine banks and an even more visceral engine sound. Koenigsegg has countered the tendency that flat-plane engines have towards greater vibration by designing new super-light connecting rods and pistons.
The connecting rods were designed by Koenigsegg’s engine architect, Dr. Thomas Johansson. The connecting rods are made from premium Swedish steel. At just 540g – including bolts – they’re as light as previous generations made from titanium, but even stronger.
The piston’s curved face shapes the combustion chamber in such a way so as to reduce peak pressure while maintaining high average pressure. The ceramic coating on the face of the piston prevents hot spots and detonation when the engine runs at maximum power. The piston weighs just 290 grams. Minimal weight is important because Koenigsegg engines have a very long stroke and at 8500rpm, efficiency of movement becomes critical.