Testing at
Jerez enters a third day on Thursday, with most of the teams in action making a change to their driver line-ups after two days of running.
Esteban Gutierrez and Valtteri Bottas make their first appearances as race drivers with Sauber and
Williams after their promotion from the test driver role, while there is also a first outing for Charles Pic after his switch to Caterham from Marussia.
Elsewhere, defending champion
Sebastian Vettel makes his first appearance of the year for
Red Bull while there is also a first appearance on-track for
Kimi Raikkonen at Lotus and Jean-Eric Vergne at Toro Rosso.
Jerez test line-up - Thursday 7 February:Sebastian Vettel Germany
Red Bull-Renault Felipe Massa Brazil
Ferrari-Ferrari Jenson Button Britain
McLaren-Mercedes Kimi Raikkonen Finland
Lotus-Renault Nico Rosberg Germany
Mercedes-Mercedes Esteban Gutierrez Mexico
Sauber-Ferrari James Rossiter Britain
Force India-Mercedes (am)
Paul di Resta Britain
Force India-Mercedes (pm)
Valtteri Bottas Finland
Williams-Renault*
Jean-Eric Vergne France
Toro Rosso-Ferrari Charles Pic France
Caterham-Renault Max Chilton Britain
Marussia-Cosworth* -
denotes 2012 spec car