Ferrari Corse Clienti’s XX Programme claimed two strong successes from 2005 through 2010, first with the Enzo-based FXX model and then with the 599 GTB-based 599XX. Conceived as a means of both developing new road car systems while engaging preferred loyal customers, the XX Programme positioned these two models as track-only non-competition cars whose owners could use them in marque-sponsored events. The resulting data would be poured into a future Ferrari model, ensuring satisfaction and gain for both customer and manufacturer—the proverbial win-win.

Of course, a true successor to the FXX could only evolve with the arrival of a new Ferrari hypercar model, a milestone that eventually transpired at the 2013 Geneva Salon. On the world’s greatest stage for automotive debuts, Maranello introduced the potent and beautiful hybrid LaFerrari. Once this was accomplished, it was only a matter of time before an exclusive track-only version for use in Corse Clienti events would follow. Sure enough, at the Finali Mondiali held at Yas Marina Circuit in Abu Dhabi in 2014, Ferrari unveiled the LaFerrari-based FXX K, a breath-taking fusion of form and function.

Like the LaFerrari, the FXX K was propelled by a Formula 1-derived Hy-Kers hybrid powerplant centred on a further version of the type F140 V-12 engine, the F140 FF, now displacing 6.3 litres. The mill was upgraded with new camshafts with mechanical (rather than hydraulic) lifters, specially polished intake manifolds, and a new exhaust system without mufflers, contributing to an increase to 848 horsepower.

A "Manettino" dial on the centre console provided four different levels of assist from an electric motor, including one designed for “instant maximum torque delivery”, offering an additional 187 horsepower. With total output now reaching 1,035 horsepower, 85 more than the LaFerrari, this was undoubtedly a thoroughbred of unprecedented stature.

The LaFerrari bodyshell underwent numerous tweaks for optimal aerodynamic performance on the track, with the nose receiving a two-part splitter with vertical fins on either end, while the rear end was transformed with twin spoiler-ettes to manage airflow, improving downforce by as much as 50 per cent over the LaFerrari. Boasting a much more menacing stance, the FXX K is 194 millimetres longer and 59 millimetres wider than its road-going sibling, while shedding some 90 kilograms for a weight of approximately 1,255 kilograms. The improved power-to-weight ratio was evident in the new car’s testing times, as it lapped Fiorano in just 1min14sec, five seconds faster than the LaFerrari.

In 2017, following the pattern of the prior two XX Programme models, Ferrari began offering an Evoluzione upgrade for FXX K owners. The FXX-K Evo featured a host of aerodynamic refinements, including redesigned rear brake intakes and a fixed full-width dual rear wing that sits over an active spoiler, in total improving downforce by 23 per cent more than the FXX K; and a shocking 75 per cent more than the original LaFerrari.

As with its two predecessors, production of the FXX K was kept to a minimum with approximately 60 examples currently accounted for. It remains the most advanced product of the XX Programme to date, and for the time being, the ultimate customer-available Ferrari development car.

EVOLUZIONE OF A TITAN

This striking FXX-K Evo is finished in the extremely rare livery of two-tone Blu Corsa Opaco with Nero Stellato Opaco accents, which beautifully offset the Nero Alcantara interior. Sold new to the consignor and delivered in March 2016, the car was decorated with #8 before being damaged in Shanghai later that year. The FXX K was then fully rebuilt at the factory to Evoluzione specifications before receiving a Ferrari Classiche "Red Book" in February 2017, documenting the car with the ultimate mark of authenticity.

In 2023, the engine was overhauled with the fuel bags replaced by Ferrari. Later that year, it was entered into the Finali Mondiali. In 2024, the car was driven at Monza and subsequently the latest technical report was established, showing the very little wear of the engine—only 7 per cent.

Given that this year marks the 20th anniversary of the successful XX Programme, there could be no better time to acquire this uber-rare techno-marvel track prodigy. As one of Maranello’s most ferociously advanced production-based track cars yet devised, chassis number 218329 would make for an outstanding acquisition for any supercar enthusiast, racing participant, or marque aficionado. The next caretaker can look forward to a warm welcome at marque-focused concours d'elegance and Corse Clienti events, or relish the unique thrill of testing the car’s limits on circuit, where the wrath of 1,035 horses can be harnessed in stunning fashion.