Lewis Hamilton and Nico Rosberg will once again share the driving duties over at Mercedes while Fernando Alonso is back for McLaren.
The fourth and final day of the opening pre-season test takes place at the Circuit de Catalunya on Thursday.
As with Wednesday’s running Mercedes have announced that Hamilton and Rosberg will share the day’s duties with the Brit in action in the morning’s session and Rosberg taking over in the afternoon.
Meanwhile, Fernando Alonso is back for his second day at McLaren while Esteban Gutierrez returns for Haas.
Mercedes – Lewis Hamilton (am) / Nico Rosberg (pm)
Ferrari – Kimi Raikkonen
Williams – Felipe Massa
Red Bull – Daniil Kvyat
Force India – Alfonso Celis
Renault – Kevin Magnussen
Toro Rosso – Max Verstappen
Sauber – Felipe Nasr
McLaren – Fernando Alonso
Manor – Rio Haryanto
Haas – Esteban Gutierrez