The One:1 is so called as it has a power-to-weight ratio of 1:1 – it weighs 1340kg and produces 1322bhp (or 1340 metric horsepower). This power output figure eclipses the P1, LaFerrari and 918 Spyder, and also that of the 1184bhp Bugatti Veyron Super Sport.
The new model from the Swedish supercar firm is derived from the Agera R, which itself boasts a 1100bhp twin-turbocharged 5.0-litre V8. For the One:1, a claimed top speed of more than 273mph is quoted, which would make it the fastest production road car in the world – faster than the 270mph Hennessey Venom GT and 268mph Veyron Super Sport.
Koenigsegg claims this top speed is possible thanks to the One:1’s “high power and high-rpm capability in combination with strong tyres and active aero”.