The cars of Ferrari’s [NYSE:RACE] XX program are the most extreme versions of the Italian automaker’s road cars, though they are designed strictly for the track and offered exclusively to loyal ‘client’ drivers that provide feedback to engineers to help develop next-generation models.

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The first of these experimental cars was based on the Enzo (FXX). It was followed by a version based on the 599 (599XX) and most recently one based on the LaFerrari (FXX K).

In this six minute-long video from YouTube user 19Bozzy92, you can see all generations of the XX cars to take the track. The sound is simply intoxicating so be sure to turn the volume up.

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