Just one month after shattering the Chiron's 0-400-0kmh record by 5 seconds, Koenigsegg have set the new world record for the fastest production vehicle, clocking a 277.9mph two-way average top speed in the Agera RS.
The Chiron is claimed to have a top speed limited to 261mph, but Bugatti has hinted at a potential for 310mph.
The French carmaker originally set the record for a test they invented in just 42 secs, adds the newspaper, but this was quickly beaten by the Koenigsegg Agera RS's time of 36 secs.
The record was set Saturday on a closed 11-mile stretch of Nevada State Road 160 outside Las Vegas. The uphill gradient and strong headwinds Lilja faced makes the runs all the more impressive. It managed the feat in 37.28 seconds, 26.88 seconds of which were used to reach the top speed of 400 km/h (249 mph). The Agera RS is powered by a 5.0 lite V8 engine which is turbo charged, it has a massive 1,380 horsepower.
To hit these incredible speeds, the Agera RS is built using a lightweight carbon fiber body and an aluminum honeycomb monocoque structure.
Official certification of the record is forthcoming, but in-car video evidence of the run was released by Racelogic, the company that provided the data logging equipment for the attempt. This is not the first time that Koenigsegg broke a world record held by Bugatti, as it happened just last month.