Maranello's engineers studied the wealth of information gained to develop a kit which will cut the FXX's Fiorano lap time to under 1'16'' (previously it was 1'18''). The Ferrari FXX's 6262 cc V12 engine can now punch out a massive 860 hp at 9500 rpm. Gearshifting takes just 60 ms, a drop of 20 ms on the previous time, and the gear ratios have been adapted to make use of the extra 1000 rpm now delivered by the engine.
The Ferrari FXX is not homologated for road use and there are no plans to compete with it either. In fact, the Ferrari FXX prototype is designed exclusively for track driving as part of a specific R&D programme agreed with a selected group of just over 20 clients involving 14 group test sessions and 14 private ones in the last two years. Thanks to readings taken over the 16,500 kilometres of tests carried out in 2006 and the 18,500 kilometres covered in 2007, the modifications made to the car have focused on honing its aerodynamics, running gear and electronics. Seven-times Formula 1 World Champion Michael Schumacher also joined the ranks of the client test drivers and gave the programme the benefit of his vast experience on several occasions.