Koenigsegg Agera R gallery: 12 photos >>
Geneva 2011: The new Koenigsegg Agera R
The Agera R has an upgraded fuel and engine management system that has enough flow capacity to generate 1115 hp and 1200 nm of torque on E85 and E100 bio fuel. As there is less energy content per given volume in these bio fuels compared to normal petrol, the fuel-system has to manage a flow that is similar to 2000 petrol hp, which means that the return less fuel system fo the Agera R has the highest capacity of any car presently in production.
As the Agera R is a flex fuel car. It is also possible to run the R on normal petrol. As 95 octane fuel has less octane than E85, the power goes down to 940 hp and 1100 nm of torque, as the boost pressure and ignition timing is altered to match the fuel characteristics.
Koenigsegg now also offer an R version of the Agera for countries that does not have E85 or E100 readily available. This non bio-fuel version has to be run on a minimum of 98 octane fuel and has been optimized to give an output of 1050 hp and 1140 nm of torque.
In order to give the Agera maximum flexibility when it comes to power delivery, Koenigsegg has joined forces with Borg Warner and adapted to the latest technology when it comes to turbine materials. The Agera R turbines are therefore made from a material called Gamma-Ti, which is an inter metallic compound comprised of Aluminium and Titanium. This new material drastically reduces the inertia of the turbine wheel and axle and therefore gives improved response.
Triplex rear suspensionChristian von Koenigsegg has invented and pioneered a new type of rear suspension system for a road car – the Triplex rear suspension. The Agera R comes with the Triplex rear suspension as standard and therefore has a shock absorber and spring connecting the right and left rear wheel. This system gives unique benefits as the two rear wheels can influence one another when desired.
There are multiple benefits of this system. For example, the extra spring and damper works in series with the normal spring and dampers allowing their spring and damping rates to be lowered. This results in increased comfort and better handling on rough and wet surfaces without compromising dry track handling.
Furthermore the RTD system has an anti-squat effect. Traditional anti-squat systems are designed into the geometry of the suspension. These systems do not add any components or weight. However they compromise the geometry of the suspension for other aspects of handling than anti-squat.
By adding the RTD system, Koenigsegg can maintain true suspension geometries for handling, but still have the anti-squat feature and harvest other new found benefits. As the RTD system compliments the normal dampers and springs, these can be made lighter. Hence, the added benefit does not significantly affect the overall system weight.
Dynamic rear wingHypercars of today generate massive amounts of down force in low to medium speed and less down force in very high speed, in order not to overload the tires and not to create too much drag. Most hypercars therefore have heavy hydraulically operated wings and flaps to cater for this need.
Koenigsegg however, following the "less is more" philosophy, has designed a dynamic system to that take care of the above described needs. This system is standard on the Agera R and optional on the normal Agera.
The most visual and obvious part of this system is the new dynamic rear wing. The wing changes its angle of attack, not with the help of hydraulics, but with the pressure of the wind. It is therefore dynamically controlled by the speed or wind resistance at any given moment in time and thus actually compensates for headwind or tailwind at the same given speed. This is an intelligent way of dealing with adaptive aerodynamics, as the system becomes lighter, less complex and more intuitive compared to heavy and complex hydraulics systems. Koenigsegg had to work heavily with CFD in order to create the dynamically controlled adaptive aerodynamics of the Agera.
Furthermore, an interesting multifunction feature of the adaptive wing is that the pylons for the wing also act as air extrusion channels. The air channels goes from the engine bay to the back of the pylons, thereby creating an air passage. This causes a venturi effect, from the air rushing past the pylon, evacuating hot engine bay gases, reducing pressure in the engine bay and increasing the flow of cooling air through the side radiators. This also means that the pressure under the car is reduced and giving more low drag down force.
All these added features to the Agera R truly make it unique. The normal Agera already has a performance out of this world, still the Agera R manages to push it just that little bit further
Koenigsegg Agera R gallery: 12 photos >>
Text and photos: Koenigsegg