The Ferrari 599 GTB Fiorano’s engine is a 65° V12 with a 6.0 litre displacement that delivers a specific power output of 103 hp/litre. Its architecture was derived directly from the Enzo’s. A further development of the same engine, this time for track-only use, was used on the recent Ferrari FXX also. The basic architecture of the Enzo engine was retained (block, cylinder heads, sump and combustion chamber geometries) while new components and subassemblies were designed to yield high engine revs, significantly reduce weight and optimise its distribution,and yield a more compact power unit.