The CCR is based on the Koenigsegg CC8S, featuring more power and higher performance. The improved-power engine was made possible by the use of a Lysholm twin-screw supercharger and a new titanium exhaust system. This takes the power output to a maximum of 806 hp (601 kW) at 6,900 rpm. Torque is also distributed evenly and peaks at 920 Nm (678 ft-lb) at 5,700 rpm. Newer versions (the Koenigsegg CCX) appear to use twin Rotrex centrifugal type superchargers instead, providing the same power, but lowering the peak torque point from 5,700 to 5,400 rpm.
Externally the CCR looks similar to the CC8S, but features a new side air-intake design, a tweaked headlight arrangement, a revised rear-end, larger brakes, more power and new front splitters for optimized downforce. Like the CC8S, the CCR is a two-seat coupe with a mid-engine, featuring large scissor doors that open by rotating up and forward.
To honour the Swedish Fighter Jet Squadron No. 1, (Johan röd) which had occupied the current facility of Koenigsegg, the CCR is adorned with a symbol of a ghost, the symbol of the squadron.
Source: Wikipedia (original)