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Koenigsegg

Koenigsegg One 1 2014

2014

The Koenigsegg One:1 is a Swedish hypercar unveiled at the Geneva Motor Show in March 2014. Its name describes a precise engineering target: approximately one kilogram for every metric horsepower. Running on E85, its 5.0-liter twin-turbo V8 produces 1,360 hp, or one megawatt, according to Koenigsegg. Derived from the Agera R, the car adds a far more ambitious active-aerodynamic package, an upgraded rear Triplex suspension, carbon-fiber springs, and track-oriented control systems. Its two-seat body retains the brand’s detachable-roof layout while introducing features designed to increase downforce and improve cooling at high speed. With six customer cars and one factory development car, the One:1 ranks among Koenigsegg’s rarest road-going models. The combination of extreme power, low mass, and sophisticated aerodynamic control made it a distinct step beyond the already formidable Agera range.

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One 1
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History

The One:1 appeared in 2014 as Koenigsegg marked its twentieth anniversary. The project was based on the Agera R, but it was more than a power upgrade. Koenigsegg states that approximately 100 kg was removed to reach a 1,360 kg curb weight, matching the 1,360 hp produced by the engine on E85 fuel. The car introduced dedicated aerodynamic hardware, including track-focused winglets, extended Venturi tunnels, side splitters, a high-mounted active rear wing, and active underbody air management. Cooling was also addressed with larger vents and a roof-mounted air intake. Active suspension, carbon-fiber springs, and an upgraded rear Triplex arrangement reinforced the car’s circuit emphasis. In July 2015, a One:1 completed a 0-300-0 km/h run in 17.95 seconds, substantially improving the earlier benchmark set by the Agera R. The result demonstrated that the model’s development focused on braking and cornering as well as acceleration.

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Technical data

One 1 is presented here with its key technical data: 1341 ch, 1371 Nm, 2.8 s, 452 km/h. The recorded setup is Propulsion / Automatique, 7 rapports.

Power
1341 ch
Torque
1371 Nm
0-100 km/h
2.8 s
Top speed
452 km/h
Displacement
5065 cm3
Weight
1360 kg
Dimensions
4501 x 2060 x 1151 mm
Consumption
14.7 L/100 km
Fuel types
Essence
Gearboxes
Automatique, 7 rapports
Drivetrain
Propulsion
Matched engine options
VersionPowerTorqueGearboxDrivetrain
5.0L V8 7AT (1,360 HP)1341 ch1371 NmAutomatique, 7 rapportsPropulsion

5.0L V8 7AT (1,360 HP)

Power
1341 ch
Torque
1371 Nm
Gearbox
Automatique, 7 rapports
Drivetrain
Propulsion

Source: CarData.wiki

Anecdotes

The name One:1 is intended to be read as “one to one,” referring to the claimed relationship between power and mass. Koenigsegg also describes the car as the first production vehicle to reach one megawatt of power. In 2015, a One:1 completed a 0-300-0 km/h test in 17.95 seconds. Koenigsegg further states that the model claimed lap records at Spa-Francorchamps and Suzuka during the same year, adding a circuit-performance dimension to its road-car status.

Production

Koenigsegg states that six customer cars were built, in addition to one factory development car. This distinction matters because the total of seven cars often associated with the One:1 includes the prototype or development vehicle rather than seven identical customer examples. Publicly available information does not provide a complete market allocation or a definitive sequence of chassis numbers. Production was therefore extremely limited, centered on the Agera platform but using One:1-specific aerodynamic, suspension, and cooling components. The model’s scarcity, together with Koenigsegg’s customary level of individual specification, helps explain why surviving cars can differ in appearance while remaining part of the same model. No broader production run or conventional series of trim levels is documented by the manufacturer.

Press reception

Specialist coverage focused on the One:1’s extreme specification and the engineering logic behind it. Car and Driver listed a 1,341-hp twin-turbo V8 in its road test and emphasized the combination of very high performance, active aerodynamics, and surprising road usability. The magazine also noted that production cars were expected to be lighter than the prototype it drove. Launch coverage highlighted the power-to-weight ratio, the projected 0-400 km/h time of around 20 seconds, and the substantial downforce promised by the active aerodynamic package. Those projected figures should be separated from independently recorded results, since several performance claims made at launch were manufacturer estimates. Overall, the One:1 was treated as a technically serious, track-oriented hypercar rather than merely a more powerful Agera.

Evolution

The One:1 evolved from the Agera R by concentrating on the relationship between mass, power, and aerodynamic efficiency. Koenigsegg reduced weight by approximately 100 kg while raising output to 1,360 hp on E85 fuel. The chassis gained active dampers, ride-height management, and a rear Triplex system paired with carbon-fiber springs. Aerodynamics were extensively revised through longer Venturi tunnels, active elements at both ends of the car, and a large upper rear wing inspired by endurance racing. These changes gave the model a more uncompromising identity than the Agera R while preserving Koenigsegg’s characteristic two-seat, detachable-roof architecture. The result was intended to generate substantial downforce without relying solely on a higher engine output.

Variants

The One:1 is not documented as a range with multiple mechanical trims or separate power levels. The program comprised six customer cars, plus one factory development car used by Koenigsegg. Differences seen between individual examples mainly concern configuration, materials, and finish rather than officially named variants. The specification established at the 2014 launch defines the series: a 5.0-liter twin-turbo V8, a seven-speed dual-clutch transmission, rear-wheel drive, and active aerodynamic systems. Public information does not provide a complete chassis-by-chassis catalogue or confirm separate special editions within the One:1 production run. It is therefore more accurate to describe the model as a highly limited, individually configured production car than as a conventional model family with several catalogued versions. The factory development example should also be distinguished from the six customer cars.

References