Hulkenberg opens pre-season F1 testing
Sauber driver Nico Hulkenberg was the first man out as pre-season testing for the 2013 season got underway on Thursday.
Hulkenberg was followed onto the 4.428-kilometres track by Mark Webber from world champions Red Bull, with team-mate and title holder Sebastian Vettel not having his first laps until Thursday.
The Jerez tests run until Friday and are the first of three rounds ahead of the March 17 season-opener in Australia. Further tests are set for February 19-22 and February 28-March 3 in Barcelona.
The tests are important to set the new cars up for the 19-race season, as drivers will gather plenty of information and data from their various stints.
Caterham and Marussia unveiled their 2013 cars just ahead of the start of testing Tuesday, with Marussia yet to announce their second driver alongside Max Chilton.
All teams apart from Williams have now unveiled their cars, with Williams set to present their model on February 19.