A few days ago, Ferrari has officially unveiled the brand-new racetrack only FXX K model. According to Top Gear, the new Italian model was already sold out.
Ferrari will build only 40 units each one having a price tag of 2.5 million euros ($3M USD). 

"Clients from all over the world have bought the FXX K and starting with next season, you will start to see the FXX K on track", said Nicola Boari during the 2014 Finali Mondiali event in Abu Dhabi.

As a reminder, the 2014 Ferrari FXX K has V12 6.2 liter engine that can offer 860 horsepower and the electric motor adds another 190 horsepower. As a result, the total output is clocked at 1.050 horsepower and more than 900 Nm of torque. 

Source: Ferrari