The record run took just 33.29 seconds, nearly nine seconds faster than the the mighty Bugatti Chiron, and four seconds quicker than its previous record set in early October (37.28 seconds).
At the wheel was Koenigsegg factory driver, Niklas Lilja, covering 2239.5 metres. The manufacturer claims the run was split into 1740.2m of acceleration and 499.3m of braking.
Helping the Agera RS to achieve its record feat is its 5.0-litre twin-turbo V8 with 865kW (1160hp) of power and a massive 1280Nm of torque, while weighing just 1395 kilograms.
Just 25 examples of this all-out hypercar will be produced, making it a very fast and very exclusive way to get around.
Have a watch of the Koenigsegg Agera RS's record run in the video above.