Sloss, a resident of California, made the winning bid of €1.4 million ($1.78 million) for the special 599XX Evo, which he had painted a bright yellow.
He was also presented with an additional souvenir in the shape of a photo taken outside the team motorhome, alongside Ferrari’s F1 drivers Fernando Alonso and Felipe Massa.
The car was the star attraction among the many items put up for auction by Ferrari and many of its closest customers. Other items included a nose cone and V-8 engine from a previous F1 car, as well as an F1 racing suit worn by the legendary Giancarlo Fisichella.
In total close to $2.3 million was raised.
The 599XX Evo is an extreme sports car designed for track but not official competition use. It packs the full gamut of Ferrari’s latest racing knowhow, which has enabled it to lap the Nürburgring-Nordschleife in just 6:58.16.
Powered by a 740-horsepower version of the V-12 engine used by the road-going 599 GTB Fiorano, the 599XX Evo also sports special wheel doughnuts to reduce drag, active aerodynamic elements to improve downforce, and Ferrari’s High-Performance Dynamic Concept adjustable suspension.
On top of this, the 599XX Evo is also part of Ferrari’s arrive-and-drive Corse Clienti program, which affords owners full factory support at driving events around the world.