The car was styled by Christian von Koenigsegg himself but its shape is largely dictated by aerodynamics. It is not as striking as Pagani or Enzo. At some angles it even looks bulky, like a big whale. But the whale delivers a sense of power that you can't find in its rivals either. Because of the targeted top speed, the body is designed to be so smooth that it has a very low drag coefficient of 0.30. This is much lower than Enzo (0.36), SLR (0.37) and Carrera GT (0.39). Unsurprisingly, the downside is a rather low downforce, just 50kg at the front and 70kg at the back. For comparison, an Enzo generates 775kg while Pagani achieves 500kg.
The chassis is constructed like other supercars. Central to it is a carbon-fiber tub (Koenigsegg called it "semi-monocoque") attached with steel subframe up front and aluminum subframe at the rear for mounting engine, gearbox and suspensions. Chassis rigidity is 28,100Nm per degree despite of the targa roof. The whole bodyshell is also carbon-fiber. Koenigsegg claims a dry weight of 1175kg, which translates to 1275kg when fluid and fuel are loaded, i.e., what we usually refer to "kerb weight". In other words, CC8S is about as light as Pagani and Saleen S7, while being around 100 kilograms lighter than Enzo and Carrera GT.