Ferrari unveils the 1,035 hp LaFerrari FXX K, Maranello gone mad

The Ferrari LaFerrari is one of Maranello's greatest creations, the ultimate expression of today's Prancing Horse. At 950 hybrid horsepower, it's about as monstrous a machine as one could possibly build for the public roads. So the track-only version, well, that should be something else: Meet the 1,035 hp LaFerrari FXX K.

Arriving with Pirelli slick tires, the FXX K clearly isn't street legal. What's more, it isn't even legal to compete in any sanctioned races series around the world. It remains, what Ferrari calls, an experimental car, and will be part of its Corse Clienti customer racing program, available only to Ferrari's most loyal customers. Basically that means it's not bogged down by regulations, allowing Ferrari to create what it deems to be the ultimate driving experience.

The powertrain in the FXX K has been gently massaged, featuring new camshafts, a modified valve train and a reworked intake manifold. Now, the naturally-aspirated 6.3-liter V-12 produces 838 hp all by itself, boosted by the electric motor to create the staggering final figure. That motor is a tuned version of the HY-KERS system in the stock LaFerrari. It arrives with four settings that optimize its flow of juices based on the driver's preference: Qualify mode, for maximum one-lap performance; Long Run mode for consistency; Manual Boost mode where all the power is unleashed instantly; and Fast Charge mode, where the system does its best to recoup energy and recharge the battery.