Two examples of the Koenigsegg Agera One:1 will appear together for the first time at the Goodwood Festival of Speed next month. One will take part in the Supercar Run on the Goodwood hillclimb, while the other will be displayed on tyre manufacturer Michelin’s stand.

The Koenigsegg One:1 gets its name from its power-to-weight ratio of 1bhp to 1kg. The car’s all-carbonfibre body and chassis are 20 per cent lighter than the standard Agera’s, active aerodynamics produce 610kg of downforce at 162mph, Predictive Active Chassis technology uses GPS data and 3G internet to set up the car’s suspension and chassis control systems according to the topography and layout of the road ahead and the cars uses bespoke Michelin Pilot Sport Cup 2 tyres which help to produce cornering forces of up to 2G. In simulations, the One:1’s top speed has exceeded 273mph.

The One:1 uses many cutting-edge technologies in both its systems and its construction. For instance, the wheels are made entirely from carbonfibre and parts of the engine’s turbochargers are 3D-printed. Built to mark Koenigsegg’s 2oth anniversary, the One:1’s entire production run has sold-out, even before it is officially on the market.

The Goodwood Festival of Speed takes place on June 26-29.

Koenigsegg One:1's active aerodynamics generate huge downforce

Koenigsegg One:1’s active aerodynamics generate huge downforce

One:1 uses 3G connectivity for telemetry, lap time and performance data

One:1 uses 3G connectivity for telemetry, lap time and performance data