The vehicle used for the run was setup for delivery to the USA and has a 1MW engine upgrade with 1360 hp and 1,011 ft-lb of torque.
For the record, the acceleration run to 400 took 26.88 seconds over a distance of 1958 metres, while the braking took 9.56s over 483 metres.
With good weather in southern Scandinavia on October 1, the team ended up using Vandel Airfield in Denmark.
It has not even been a month since Bugatti announced its record of getting from 0-400km/h back to zero but in that tiny space of time Swedish hypercar manufacturer Koenigsegg has already smashed its record. "A result like this does not just happen", he said of the new record.
Powered by a substantially smaller engine with half the turbochargers, the Koenigsegg's 5.0-liter twin-turbo V8 spits out an incredible 1,160 hp, which is why the sprint to 250 miles per hour looks so effortless. It may have only taken a few hours of driving to complete this run, but we can not overlook all the work that went into creating the auto in the first place. Fewer than 30 days later, Koenigsegg has managed the same thing with its Agera RS supercar, only 5 seconds faster.
As discovered by Motor1, the Swedish company recently took to Facebook to taunt their French rivals by posting a photo of an Agera RS with a caption saying "0-400-OMG". It packs an 8.0 litre quad-turbocharged W16 engine pushing 1,500 PS and 1,600 Nm of torque, enabling a 0 to 100 km/h time of 2.5 seconds.