The German driver and championship leader Sebastian Vettel has dominated the third free practice at the Circuit of Spa in Belgium.
Behind Vettel, Fernando Alonso finished second, very optimistic and happy with the balance and stability of his F138, apparently the engineers have managed to find the right set-up with the new changes and the peculiar downforce setup for the Belgian circuit.
The surprise of the weekend is Vergne, who with the STR has finished 4th and with the hard tyres.
Kimi Raikkonen finished tenth but his register is not significant becouse his lap is not entirely clear.
Rain is expected for the qualifying sesion, or at least there is a high possibility of rain at some moment in the qualifying session to be held at 14:00 h.
