Koenigsegg CCX

The Koenigsegg CCX is a mid-engined roadster from Swedish car manufacturer Koenigsegg. The CCX has been engineered to comply with the U.S. regulation and market demands^[2] and is an evolutionary design that replaced the Koenigsegg CCR.

CCX is an abbreviation for Competition Coupe X; the X commemorating the 10th anniversary, (being the Roman numeral for ten), of the completion and test drive of the first CC vehicle in 1996.^[2]

The CCX was first unveiled on February 28, 2006 at the 2006 Geneva Motor Show although its existence was announced earlier.^[3][4] A derivative known as the CCXR is available, the difference being that CCXR's engine is tuned to run on biofuel. The different fuel and tune allows the CCXR to produce 25% more power than the CCX.
On March 19, 2009, Koenigesegg announced, via the Cars UK ^[26]site, that production of the CCXR Edition will be limited to just four cars, and that of the CCX Edition to only two. This was partly in response to the decline in the world economy, but also because Koenigsegg are now committed to an environmentally responsible future, as demosnstrated by the Quant, which was shown at the Geneva Motor Show in 2009.