The Regera wasn't the only extreme Koenigsegg in Geneva and neither was it the most extreme.
Instead, Swedish supercar maker Koenigsegg claims it's going after the Nurburgring lap record with its Agera RS.
The track-focused supercar of the Koenigsegg range, the Agera RS is claimed to deliver an astonishing 485kg of downforce at 250km/h or up to 600kg at 300km/h.
All that active downforce leads to the lower top speed of 410km/h, but Koenigsegg insists it will be faster around any racetrack on earth.
It's not just going to be faster, but it will tie its aero work with its adaptive suspension via satellite navigation to work out not just whether or not you're on a racetrack and adjust the car to suit, but which parts of the racetrack you're on.
All we need next is a car that thrashes itself around a racetrack race track with no driver...
The Koenigsegg Agera RS will know where on the Nurburgring to run the active dampers at full soft and where to run it hard to get the most out of the car's speed potential. Which Koenigsegg claims it has a lot of.
It's based around a similar carbon-fibre structure as its zappy stablemate, but uses the pure petrol power of its biturbo 5.0-litre V8 instead.
Using a pair of variable geometry turbos, the Agera RS has 865kW of power at 7800rpm and up to 1280Nm at 4100rpm, though even Koenigsegg admits the peak torque figure is a fleeting one. Instead, it says, expect the regular number to be "only" 1000Nm between 2700 and 6170rpm.
Where E85 is available, it can be specified with enough gristle to take it up to the level of the Koenigsegg One:1.
Made in lacquer-coated carbon-fibre with orange flashes to enhance its lack of subtlety, the Agera RS's aero package includes new side skirts, ankle-busting winglets at the front, a deep front splitter, a flat underbody, a rear diffuser and an active rear spoiler.
It has self-leveling active rear suspension and even more carbon-fibre and composites than the R or the S models that once held Koenigsegg's speed torch.
The Swedish company plans to build 25 Agera RS coupes, and claims 10 of them were sold even before the Geneva show. While it's a track-biased special, it is also able to be registered for the road… At least in Europe.