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A two-way average of 277.9mph makes the Koenigsegg Agera RS the fastest production car yet
Koenigsegg has broken the speed record for a production car after recording a two-way average speed of 277.9mph in the Agera RS.
The run took place in Pahrump, Nevada, and breaks the previous record holder, the Bugatti Veyron Super Sport, which recorded a speed just shy of 268mph in 2010.
Factory driver Niklas Lilja was behind the wheel for the run.
Bugatti's previous record of 41.96sec is 5.52sec slower than Koenigsegg's, although Bugatti has yet to do a full top-speed run in the Chiron. Koenigsegg has also yet to fully demonstrate the top speed of its range-topping hypercar, the Regera.
Although not yet officially confirmed, the Koenigsegg run was recorded and verified by Racelogic.