Koenigsegg CCX is an abbreviation for Competition Coupé 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.
The Koenigsegg CCX was first unveiled on February 28, 2006 at the 2006 Geneva Motor Show although its existence was announced earlier. A derivative known as the Koenigsegg CCXR is available, the main difference being that Koenigsegg CCXR's engine is tuned to run on biofuel. The different fuel and tune allows the Koenigsegg CCXR to produce 25% more power than the Koenigsegg CCX.
