This year’s Geneva Motor Show will see the debut of the world’s first megacar in form of the Koenigsegg One:1. This extreme version of the Agera is the first car of its type to boast a 1 to 1 power to weight ratio. That means it is fast. Very fast. Mind-bogglingly fast.

Before we discuss the specs of Koenigsegg One:1 as a recap for those who may not have seen our thorough feature on the car, let’s check out the megacar as it’s being unloaded and driven into the Geneva Motor show. This helps us appreciate the amazing details of the car.

Koenigsegg One:1 is powered by a bi-fuel E85-capable turbocharged V8 engine that develops a staggering 1,341 horsepower. It also features a lightweight carbon fiber construction that results in a dry weight of 1,341 kg. That’s where the 1:1 moniker comes from: the car has one horsepower for every kilogram of its weight.

It is yet to tested, but theoretically, Koenigsegg One:1 can reach a top speed of 440 km/h which is faster than any other production car in the world. It is also the fastest car in the world from 0 to 400 km/h, which is dealt with in under 20 seconds. Still, Koenigsegg maintains the One:1 is a track-focused car and not a top speed monster, hence the massive wing and that active aero features.