In the process of developing the final body, Koenigsegg has focused on perfecting the aerodynamics of the CCR. The body shape is remarkably low and streamlined; corners and angles are restricted to a minimum. The goal has been to construct a body that will allow the car to travel at speeds exceeding 395 km/h (242 mph).

This has required reducing drag beyond that of any competitor, working with wind tunnel testing both at Volvo’s test facility and at the Chalmers Institute of Technology, both in Gothenburg, Sweden. Racing technology holds a key position; underneath the front bumper is a nolder type integrated wing, which is derived from the latest Le Mans cars, which serves to increase frontal down force.

The chassis layout is completely flat underneath, in order to optimize down force and reduce drag. Venturi tunnels act as rear diffusers to counteract any lift at high speeds. The design of the rear hood incorporates two air outlets and a ducktail that cooperate to produce enough down force to replace a rear wing. Tests have verified a C value of only 0.297 with down force. This aerodynamic perfection is a result of the generally organic and streamlined character of the body, which helps the car cut through the air like a projectile. The minimal height of the vehicle, only 1.07 m (42.1 in), is also a crucial factor in reaching the extreme projected top speed.

The body of the CCR shows some new features when compared with the previous model CC 8S. Most notable are the redesigned side air intakes and the new headlights. The air intakes’ new shape is an improvement both aesthetically and aerodynamically. This design allows more air to be pulled into the cavity and causes higher air pressure on the actual cooler, which makes the oil and intercoolers work more efficiently.

The CCR is also equipped with a front splitter made of carbon fibre. It functions as a dividing plane that determines which part of the air-flow should pass above or below the vehicle. The purpose is to better define the jet stream that rushes in under the car and builds up the venturi-effect, which “glues” the car to the ground. A fluctuating or turbulent jet-stream causes the down force to be unstable, which can result in a loss of road holding during high speed cornering. This discrete splitter is also designed to increase frontal down force, both by pushing more air upwards and toward the sides and by prolonging the curvature of the integrated wing on the underside of the bumper. Air pressure on the main radiator and brake cooling inlets is also greater, which further enhances the performance of the Koenigsegg CCR.