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Koenigsegg One:1 1 of 7 ever made
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The Megacar

1,341 horsepower. 1,360 kilograms. A 1:1 power-to-weight ratio that gave birth to the world's first Megacar — only 7 units ever manufactured.

Carbon Architecture

The One:1's carbon fiber monocoque chassis weighs just 1,360 kg — every gram engineered to serve Koenigsegg's relentless pursuit of the perfect power-to-weight ratio.

One Megawatt Unleashed

A twin-turbocharged 5.0L V8 producing 1,341 hp and 1,371 Nm of torque. One full Megawatt of power — the unit of measurement that defined a new class of automobile.

273 MPH

Top speed that rewrites physics. From 0 to 400 km/h and back to a standstill in under 20 seconds. This is not a car — it's a controlled detonation.

Aerodynamics

610

Downforce (kg)
Combustion

5.0L

Twin-Turbo V8
Electric KERS

1MW

One Megawatt
Carbon Fiber

1:1

Power-to-Weight
01

Active Aero

A dynamically adjustable rear wing and front splitter generate over 610 kg of downforce at 260 km/h. The One:1's active aero system was the most advanced ever fitted to a road car in 2014.

02

The 5.0L Heart

A twin-turbocharged 5.0-liter aluminum V8 producing 1,341 hp on E85 biofuel. Dry-sump lubrication, forged internals, and 1,371 Nm of torque at 6,000 RPM — the engine weighs just 197 kg.

03

One Megawatt

The One:1 was the first homologated production car to produce one Megawatt of power — 1,000 kW. This figure isn't marketing. It's a mathematical fact derived from 1,341 metric horsepower.

04

The 1:1 Ratio

1,360 hp. 1,360 kg. The perfect equilibrium that gave the One:1 its name. Carbon fiber body, roof-mounted air scoop, and Koenigsegg's signature dihedral synchro-helix doors — all in service of the ratio.