The Swedish carmaker has just broken their own Guinness World Record of achieving the fastest 0-300-0 km/h time with their 'hypercar' called the One:1.

Already considered to be unbeatable as Koenigsegg already achieved the world record back in September 2011 with the Agera R, the One:1 was able to do it 3.24 seconds faster, eclipsing the 21.19 second time four years ago.

Driven by Koenigsegg factory driver Robert Serwanski, the record-beating run was done during the evening of June 8, 2015 at the company's test track in Angelhom, Sweden. With the help of an industry standard VBox date logger, Serwanski was able to make the One:1 leap from 0 – 300 km/h in 11.92 seconds and was able to stop the megacar in only 6.03 seconds. In total, the Koenigsegg One:1 clocked in at 17.95 seconds.

A top view of the Koenigsegg One:1

In review, the Swedish megacar is powered by a 5.0-liter twin-turbo V8 that was developed in-house and benefits from dry sump lubrication, carbon-fiber intake manifold and a ceramic coated Inconel exhaust system. The engine develops 1359 PS at 7,500 – 8250 rpm along with more than 1000 Nm of torque that is readily available between 3,000 and 8,000 rpm. It is mated to a 7-speed dual clutch gearbox which allows it to sprint from 0 – 400km/h in just 20 seconds.

It has a curb weight of 1,359 kg as its chassis is constructed out of F1-style carbon-fiber honeycomb structure, giving its One:1 namesake. Allowing to easily shed gained speed are a set of ceramic discs that measure 397mm at the front and 380mm at the back. In addition, the front axle benefits from 6 piston calipers while the rear axle has 4-piston calipers.