The Koenigsegg CCX is the latest supercar from Koenigsegg. CCX is an abbreviation for Competition Coupe X. The X commemorates the 10th anniversary of the completion and test drive of the first CC vehicle in 1996. The CCX is intended to be more suitable for the U.S. market and thus engineered to comply with US regulations. The CCX is powered by a Koenigsegg designed and assembled, all aluminium, 4700 cm? DOHC 32 valve V8 based on the Ford Modular engine architecture enhanced with twin Rotrex centrifugal superchargers with response system, 1.2 bar boost pressure and an 8.2:1 compression ratio. The engine produces 806 hp (601 kW) and 678 lbf.ft (920 Nm) on 91 octane (U.S. rating) gasoline, 850 hp (634 kW) on 96 octane (Euro rating) gasoline and 900 hp (671 kW) on biofuel.