This is the Koenigsegg Agera, the Swedish firm’s new hypercar.
Although Koenigsegg claims the car is all new, the Agera is essentially a heavily modified and upgraded version of the outgoing CCX, designed for track use. The length and height remain identical to the CCX, although the exterior and interior styling has been overhauled and the car is wider.
Koenigsegg has also changed the suspsnsion, fitted carbon ceramic brakes, reworked the anti-lock brakes and traction control and added larger air vents.
Underpinning the car is an aluminium honeycomb-reinforced carbonfibre chassis. Power comes from a 4.7-litre V8 engine, which produces 898bhp at 6850rpm and 811lb ft at 5100rpm.
The 1290kg Agera can get from 0-62mph in 3.1sec and from 0-124mph in 8.9sec, before hitting a top speed of almost 250mph.
New interior features include a carbonfibre centre console and a new lighting system that uses "invisible nanotubes" to increase the visibility of the buttons, dials and instruments.
Koenigsegg plans to build just 16-20 Ageras per year in Sweden and will start taking orders at the Geneva show. It costs from 780,000 euros (£750,000).