Could be an update or the FF's successor, just a new exhaust system or something different from Ferrari's upcoming V12 stable. Any good guesses?

The great thing about Ferrari's Fiorano test track is that you can actually climb up to its fence and shoot videos of prototypes lapping it hard in high definition. Dear friend of ours Marco Marchettino is really good at this, and his latest video shows a strange FF mule with exhausts long enough for Bosozoku.

Marco says it was also louder than any LaFerrari he heard lapping the circuit. I guess it's time to put on your headphones...

So, what are we seeing here?