For the 2014 Geneva Motor Show, Koenigsegg created the one:1 based on the Agera platform. Seven examples, including one prototype, were built during 2014 and 2015.
Koenigsegg released an upgraded version of their fastest car called the CCXR Special Edition. This new Special Edition improves upon its theme and has the same 1018 horsepower engine, but with an upgraded body and interior.
The CCXR featured a highly modified CCX engine that ran on E85 as well as normal petrol in any mixture thanks to an advanced and Koenigsegg developed flex fuel system. When running the CCXR on petrol, the 4.7 liter twin-supercharged Koenigsegg engine delivers 806 Bhp.
The Agera S was created for markets which do not have E85 fuel. It is basically an Agera R apart from the flexfuel capability. Koenigsegg has managed get 1100 nm torque and a full 1030 hp on 98 octane RON.