2014 Barcelona in-season test line-ups
Vettel to drive for Red Bull; Wolff gets Williams chance
By William Esler
Last Updated: 13/05/14 11:34am
With Mercedes once again the dominant force last weekend - third-placed Daniel Ricciardo was nearly 50 seconds behind Lewis Hamilton and Nico Rosberg - the teams will be eager to use the two days of running to close the gap, with no further testing scheduled until after July's British Grand Prix.
Pirelli will also be testing different compounds of tyres during the running with Sauber and Toro Rosso dedicating Tuesday's running to the Italian firm before McLaren and Force India take over on Wednesday.
Barcelona in-season test - driver line-ups
Red Bull - Tuesday: Sebastien Buemi; Wednesday: Sebastian Vettel.
Mercedes - Tuesday: Lewis Hamilton; Wednesday: Nico Rosberg.
Ferrari - Tuesday: Kimi Raikkonen; Wednesday: Kimi Raikkonen.
Lotus - Tuesday: Charles Pic; Wednesday: Pastor Maldonado.
McLaren - Tuesday: Jenson Button; Wednesday: Stoffel Vandoorne.
Force India - Tuesday: Nico Hulkenberg; Wednesday: Daniel Juncadella.
Sauber - Tuesday: Giedo van der Garde; Wednesday: Esteban Gutierrez.
Toro Rosso - Tuesday: Jean-Eric Vergne; Wednesday: Daniil Kvyat.
Williams - Tuesday: Felipe Massa; Wednesday: Susie Wolff.
Marussia - Tuesday: Max Chilton; Wednesday: Jules Bianchi.
Caterham - Tuesday: Kamui Kobayashi; Wednesday: Robin Frijns.