Koenigsegg

Koenigsegg premiered the CCXR, a biofuel/flex-fuel version of the CCX. The car features a modified engine, fuel system, and engine management system that enables the car to run on regular petrol or ethanol, and in any mixture between these two fuels. Ethanol has a higher octane rating compared to regular fuel and has an internal cooling effect on the combustion chamber, which allows increased performance.
turbocharger V8 engine capable of 910 hp (679 kW), coupled to a newly developed 7-speed gearbox. The Agera's design follows a clear lineage from the previous Koenigsegg super cars.
but adds many special new features, such as a wider front track, new styling and aerodynamic features, and a new interior; including a new lighting technique they call "Ghost Light", which consists of microscopic holes to hide the interior lighting until it is turned on, which then shines through what appears to be solid aluminium.