The Koenigsegg One:1 is the star of a video taken at the 2014 Goodwood Festival of Speed.

The Koenigsegg One:1 is the star of a video taken at the 2014 Goodwood Festival of Speed.

So far Koenigsegg has built only two units of the One:1 and both of them are at Goodwood to the delight of the audience. Billed as the "world's first megacar", the One:1 weighs 1,360 kg (all fluids, 50 percent fuel) and offers 1,360 PS (1,000 kW) from its uprated aluminum twin-turbo V8 5.0-liter engine sourced from the Agera R and further tweaked to generate a whopping 1,371 Nm (1,011 lb-ft) of torque at 6,000 rpm.

Power of the engine - which takes three weeks to build - is channeled to the carbon fiber wheels through a 7-speed dual-clutch gearbox developed specifically for this model which grants the One:1 with a 0-248.5 mph (0-400 km/h) run in only 20 seconds onto an estimated (and simulated) top speed of more than 273 mph (440 km/h).

Only six customer cars are being built and obviously all of them have already been sold at a rumored price tag of 2M USD.

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