Earlier today, we heard that Koenigsegg between Las Vegas and Pahrump for an Agera RS to attempt to become the world's fastest car.
It just succeeded.
Koenigsegg just announced on its Twitter account that an Agera RS achieved a two-way average speed of 277.9 mph, 12 mph quicker than the Bugatti Veyron Super Sport and quicker than the 270.49 mph set by the Hennessey Venom.
This is really the only stretch of road that was long enough for the run, as Koenigsegg didn't have access to a high speed oval like Volkswagen's Ehra Lessein, which is where Bugatti has set its records.
Early word was that the Agera had unofficially done a run , which was astoundingly fast. It is possible that the Agera hit that speed in one direction, though. These top speeds are taken as an average of the top speed from runs in both directions to account for wind speed and traction. If it did 291 in one direction, means it'd have hit 265 in the other direction to achieve the 277.9 average.
We're waiting on official word on the speeds in both directions and will update when we have the info.